Refereed Journal Publications

A-optimal designs for optimum mixture in an additive mixture model (with Manisha Pal, N.K. Mandal), Statistics: A Journal of Theoretical and Applied Statistics, 2017, 51,265-276, Impact Factor 0.51.

Two-level screening designs derived from binary nonlinear codes (with T.I. Katsaounis), Journal of Korean Statistical Society,  2016, 45, 210-220, Impact Factor 0.44.

Robust Designs in Generalized Linear Models: A Quantile Dispersion Graph Approach (with I. Das, S. Mukhopadhyay), Communications in Statistics-Simulation and Computation, 2015, 44, 2348-2370, Impact Factor 0.343.

Construction of crossover designs for comparing test treatments with a control using terraces (with Seema Gupta and Mithilesh Jha). Communications in Statistics-Simulation and Computation, 2015, 44, 580-590, Impact Factor 0.343.

A class of composite designs for response surface designs (with Stelios George and Stella Stylianou), Computational Statistics and Data Analysis, 2014, 71, 1124-1133, Impact Factor: 1.304.

Efficient three-level screening designs using weighing matrices (with Stelios George, and Stella Stylianou): Statistics: A Journal of Theoretical and Applied Statistics, 2014, 48, 815-833, Impact Factor 0.83.

Balanced and Unbalanced Response Surface Designs Involving Qualitative Factors under Split-Plot (with SR Chowdhary, Anita Bansal, Archana Verma). Journal of the Indian Society of Agricultural Statistics, 2014, 68, 1-10.

Optimal Orthogonal block designs for four mixture components in two blocks based on F-squares for Becker's models and K-model (with Poonam Singh, Vandana Sareen and Bushra Hussain): Statistics- A Journal of Theoretical and Applied Statistics, 2013, 47, 1003-1021. Impact Factor 0.83.

Pseudo-Bayesian A - optimal designs for estimating the point of maximum in component-amount Darroch-Waller mixture model (with N.K. Mandal, and Manisha Pal), Statistics and Probability Letters, 2012, 82, 1088-1094, Impact Factor: 0.498.

Computer Generated Change Over Designs for Correlated Observations (with Sabrata Kumar Satpati, V K Gupta, and Rajender Parsad) Communications in Statistics: Theory and Methods, 2012, 41, 3786- 3798, Impact Factor:  .407.

The characterization of the smallest two fold blocking sets in PG (n, 2) (with Leo Storme and Andreas Klein) Designs, Codes and Cryptography, 2012, 63, 149-157, impact Factor: 0.766.

Generalized Neighbor Designs with block size 3 (with Ijaz Iqbal, M. H. Tahir, Asghar Ali, and Iftikhar Ahmed), Journal of Statistical Planning and Inference,2012, 142, 626-632, Impact Factor: 0.716. 

Orthogonally Blocked Mixture Component - Amount Designs via Projections of F - Squares (with Poonam Singh, Vandana Sarin, and Bushra Hussain), Journal of the Korean Statistical Society, 2012, 41, 49 - 60, Impact Factor: 0.465.

Cyclic Polygonal Designs with block size 3 and joint distance alpha = 2 (with Ijaz Iqbal, M. H. Tahir), Communications in Statistics: Theory and Methods, 2011, 40, 2583 - 2590, impact Factor: 0.407.

Optimum Designs for Parameter Estimation in Linear Mixture Models with Synergistic Effects (with Manisha Pal, Nripesh K. Mandal), Communications in Statistics: Theory and Methods, 2011, 40, 2059 - 2073, Impact Factor 0.407.

Nearly Optimal Orthogonally Blocked Designs for four Mixture Components based on F - Squares (with Poonam Singh, Vandana Sarin and Bushra Hussain), Communications in Statistics: Simulations and Computation, 2011, 40, 177-195, Impact Factor: 0.343.

A-Optimal Designs for an Additive Cubic Model (with Poonam Singh and Mahesh Panda), Statistics and Probability Letters, 2011, 81, 259 - 266, Impact Factor: 0.498

On D-optimal robust second order slope rotatable designs (with Rabinder Nath Das and Sung H. Park). Journal of Statistical Planning and Inference, 2010, 140, 1269 – 1279, Impact Factor: 0.716

 Robust second order slope rotatable designs with maximum directional variance  (with Rabinder Nath Das and Sung H. Park): Communications in Statistics -   Theory and Methods,  2010, 39, 803 - 814, Impact Factor: 0.407.

Construction of some classes of balanced cross-over designs from terraces (with Mithilesh Kumar, Seema Gupta, Sarah Garland ),  Journal of Statistical Planning and Inference, 2010, 140, 2817 - 2827, Impact Factor: 0.716.

Some Constructions of Balanced Ternary Residual Treatment Effects Designs (with Mithilesh Kumar): Journal of Statistical Theory and Practice, 2010, 4, 699 - 710. Guest-Edited by Professor C. R. Rao, the topmost living Statistician in the world.

Constructions of residual treatment effects designs for comparing test treatments with a control (with Mithilesh Jha). Communications in Statistics: Theory and Methods, 2009,38, 2567 - 2577, Impact Factor: 0.407.

Nonregular Robust Parameter Designs ( with Yingfu Li and Jiantian Wang ). Statistics in Biopharmaceutical Research, 2009, 1, 399 - 406, Impact Factor: 0.543.

Mixture Designs in orthogonal blocks using F-squares( with Poonam Singh, Vandana Sarin and Bushra Hussain). Metron, 2009, LXVII, 105-128 (Metron: International Journal of Statistics founded in 1920 by Corrado Gini, Italy).

Projection Estimation Capacity of Hadamard Designs (with Yingfu Li)  Journal of Statistical Planning and Inference, 2008 , 138 , 154-159, Impact Factor: 0.716.

 Optimal Fractional Factorial Plans using Finite Projective Geometry (with L.Y. Deng and M.D. Mazumdar) Communications in Statistics : Theory and Methods, 2008, 37, 1258-1265, Impact Factor: 0.407.

Optimal orthogonal block designs in two blocks based on F – squares for Darroch and Waller’s model in four components (with P. Singh, V. Sarin & B. Hussain).Statistics and Applications, 2008, 6, (New Series), 257 - 274.

Optimal Asymmetrical Fractional Factorial Plans using Finite Projective Geometry (with L.Y. Deng and M.D. Mazumdar). Journal of Indian Society of Agricultural Statistics 2007, 61, 169-178.

Optimal Orthogonal Block Designs for q Components in q-1 Blocks (with L.Y. Chan and P. Singh) Journal of Statistical Theory and Practice , 2007,1 , 465-477.

Optimal Fractional Factorial Plans using Spreads (with L.Y. Deng and M.D. Mazumdar) Journal of Indian Society of Agricultural Statistics, 2007, 61,14-17

Balanced Residual Treatment Effect Designs of First Order for Correlated Observations (with Deng, L.Y. & Jha, M.K.).Statistics and Probability Letters, 2007, 77, 901-906.

Efficient Response Surface Designs with Quantitative and Qualitative Factors (with S.R. Chowdhury, A. Bansal and N. Mittal). Journal of Indian Society of Agricultural Statistics, 2006 ,60 ,90-99

Efficient Uniform Designs for Mixture Experiments in Three and Four Components (with P. Singh), Journal of Applied Statistical Science, 2006,  15, 145-160.

Blocked Non-Regular 24-Run Fractional Factorial Designs. (with Chowdhury S.R., Kaul R. & Mital N) Statistics and Application, 2006, 4, 47-69

Some New Series of Partially Balanced Residual Treatment Effect Designs (with Jha, M.K.). Communications in Statistics: Theory and Methods, 2006, 35, 1477-1482.

Balanced Residual Treatment Effect Designs of First and Second Order (with Deng,L.Y. & Jha, M.K.). Statistics and Probability Letters, 2006, 76, 597-600.

Tight Asymmetric Orthogonal Arrays of Strength Two (with Deng, L.Y. & Mazumder, M.D.). Journal of Korean Statistical Society, 2006,  35, 49-61

Hidden Projection Property of 4^l2^m Non-regular Fractional Factorial Design (with  Chowdhury, S.R., Bansal, A. & Mital, N.) IAPQR Transactions, 2006, 36, 1-18.

D-optimal designs in two orthogonal blocks for Darroch and Waller’s Quadratic Model in constrained mixture components (with P.Singh), Metron, 2006, LXIV, 315-326.

 A New Method of construction of (r, λ) –Designs using Codes (with Seema Gupta) . Journal of Combinatorics, Information and System Sciences,2006, 31, 333-342.

 
Efficient Three Level Response Surface Designs with Quantitative and Qualitative Factors. (with Chowdhury, S.R., Bansal, A. & Mital, N. ) , Jour. of Statistics and Applications,2006,1,193-201.

Interaction Graphs For 4^r2^n-P Fractional Factorial Designs (with Chowdhury, S.R., Bansal, A. & Mital, N.), Journal of Modern Applied Statistical Methods, 2006, 5, 475-489.

Maximum Estimation Capacity for Three Level Combined Arrays (with S.R. Chowdhury, A. Bansal and N. Mittal). Journal of Indian Society of Agricultural Statistics, 2005, 59, 217-227.

Optimal Fractional factorial Plans using Minihypers with Mazumder, M.D.). Statistics and Probability Letters, 2005, 75, 291-297.

Efficient Mixture Designs Through Projection of Minimal Second Order Response Surface Designs (with P.Singh), Journal of Applied Statistical Science, 2005, 14, 13-24.

On the existence of balanced n-ary residual treatment-effects designs (with Alan Ling). Bulletin of the ICA 2004, 42, 115-118  

Some New Residual Treatment Effects Designs for Comparing Test Treatments with a Control(with Lih-Yuan Deng & Mithilesh Kumar Jha)Journal of Applied Statistics, 2004, 31, 1065-1081.  

Optimal Fractional Factorial Plans Using Finite Projective Geometry (with Lih-Yuan Deng & Mukta Datta Mazumdar ) IAPQR TRANSACTIONS , 2004, 29, 97-104.  

Orthogonal block designs in two blocks for second degree K-Model(with Poonam Singh and Nidhi Gupta)Staistics and Probability Letters, 2004, 66, 423-434.  

A New Method of Construction of Multi-Level Supersaturated Designs (with Seema Gupta). Journal of Statistical Planning and Inference, 2004, 121,127-134  

Some New Asymmetric Orthogonal Arrays (with Veena Budhraja). Journal of Korean Statistical Society, 2003, 32, 225-233.  

Interaction Graphs for Two Level Combined array (with B.C. Gupta, S.R. Chowdhury and H. F. Walker). Journal of Industrial Technology, USA. (2003)  

Comparison of Mixture Designs Obtained Through Projections (with Poonam Singh). Journal of Indian Society of Agricultural Statistics, 2003, 56, 39-51.  

A New Class of Orthogonal Arrays and its Applications (with V. Budhraja and Dennis K.J. Lin). IAPQR Transactions, 2003, 28, 23-32 .  

Nested Balanced Incomplete Block Designs Derivable from Simplex Codes (with Seema Gupta). Journal of Discrete Mathematical Sciences and Cryptography, 2003, 6, 35-44.  

Interaction Graphs for Two Level Fractional Factorial Designs when Three Factor Interactions are Present (with B.C. Gupta and S.R. Chowdhury). Journal of Combinatorics, Information & System Sciences. Vol. 26 (2001) 137-147 (Out in 2003).  

On Construction of Some New Symmetric and Asymmetric Orthogonal Arrays (with V. Budhraja). Journal of Discrete Mathematical Sciences and Cryptography Vol.5 (2002) 215-225.  

Optimal Orthogonal Designs in Two Blocks for Becker's Mixture Models in Three and Four Components (with Poonam Singh & Vandana Sareen) Statistics & Probability Letters, Vol. 59, (2002) 385-396  

Some Optimal Balanced Residual Treatment Effect Designs (with Jha,M.K). Statistics and Applications. Vol. 3(2001) 201-208  

Taguchi's Robust Parameter Design and its Alternatives. Presidential Address Statistics Section 88th Session of ISCA (2001).  

Some Constructions for Balanced n-ary Residual Treatment Effects Designs(with Jha,M.K). Statistics and Probability Letters Vol. 47 (2000) 347-350  

Small Robust Response Surface Designs for Quantitative and Qualitative Factors (with Gupta,B.C. & Bansal,A). American Journal of Mathematical and Management Sciences Vol. 20 (2000) 103-130  

Hidden Projection Properties of Some Optimal Design (With Renu Kaul). Statistics and Probability Letters. Vol. 43, (1999) 87-92.  

Combined array approach for optimal design (With Renu Kaul), Communications in Statistics. Theory and Methods. Vol. 29 (1999) 2655-2670.  

Recent Developments in Robust Parameter Techniques (with Renu Kaul). Journal of Combinatorics, Information & System Sciences. Vol - 23 (1998) 441-454 (Dedicated to Jagdish N. Srivastava on his 65th year)  

Robust Response Surface Designs Involving Qualitative and Quantitative Factors (with Anita Bansal). Communications in Statistics. Theory and Methods. Vol 27 Issue 1 (1998) 89-106.  

Catalogue of Group Structures for Two-Level Fractional Factorial Designs (with A. Goel & S.R. Chowdhury). Journal of Applied Statistics, Vol. 24, No. 4 (1997) 437-451.  

Use of Asymmetrical Factorials for Generating Designs for Quadratic Model (withVandana Sarin). Statistics and Probability Letters, 1996, 27, 275-279.  

Interactions Graphs for Maximum Number of Clear Two Factor Interactions (with Anita Goel). IAPQR TRANSACTIONS, 1995, 20, 5-16.  

A New Family of Balanced Incomplete Block Design with Nested Rows and Columns (with K.T. Arasu). Australasian Journal of Combinatorics, 1995, 12, 295-299.  

Linear Graphs for 2k-p Fractional under the Split-Plot Design (with S.R. Chowdhury). Journal of Statistical Research, 1994, 28, 73-87.  

Construction of Generalised Cyclic Combinatorial Balanced Design for First Order Residual Treatment Effects (with Kudrat and Vartak). Calcutta Statistical Association Bulletin, 1993, 43, 85-94.  

Estimation of Several Missing Values in F-Squares Designs (with Subramani) Biometrical Journal, 1993, 35, 455-463.  

s-levels Multiple Response Main Effects Factorial Plans (with U. Batra). Bulletin of Calcutta Statistical Association, 1992, 42.  

A Combinational Theorem for a Class of Residual Treatment Effects Design (with Kudrat and M.N. Vartak). Statistics and Probability Letters, 1992, 17, 123-125.  

Construction of Row-Column Confounded Factorial Design using Pseudo Factors (with Shamsuddin). Chittagong University Studies, Part II, Science, 1989, 13(2), 33-42.  

Construction of Row-Column Confounded sn-l Fractional Factorial Designs (with Shamsuddin). Metron, 1989, XLVII-N. 1-4. 431-441.  

Irregular Fractional in Row-Column Confounded Symmetrical Factorial Design (with Shamsuddin). Metron, 1988, 46, 237-252.  

Non Orthogonal Compromise Plans for (s-1)s Factorial (with U. Batra). Gujarat Statistical review, 1988, XV, 25-32.  

Construction of Row-Column Confounded Symmetrical Factorial Design (with Shamsuddin) Metron, 1987, XLV, 5-9.  

Evaluation of 1 + xq as Power of Galois Field (with R.N. Shil). Journal of Statistics Research, 1986, 20.  

Moments of Record Statistics (with Nagabhushanam). Studia Sci. Math. Hung, 1975 10, 147-156.  

Records and Oscillating Random Walk. Bulletin of Calcutta Statistical Association, 1976, 25, 55-64.  

Distribution of Mean of Outstanding Elements (with Nagabhushanam). Studia Sci. Math Hung, 1975, 10, 147-156.  

The Distribution of Record Values and the Problem of Number of Exceedences (with Nagabhushanam). Journal of Mathematical Sciences, 1974, 9, 123-128.  

Distribution of Intersections, Returns in a Generalised Random Walk. Journal of Mathematical Sciences, 1972, 9 69-78.  

Coverage of a Record Value and Related Distribution Problems (with Nagabhushanam). Calcutta Statistical Association Bulletin, 1971, 20, 99-103.  

Presentations - Conference (refereed *)

2012 Gave an invited talk at the International Conference on Statistics and Informatics in the Agricultural Research held at the Indian Agricultural Statistics Research Institute, New Delhi, India during December 18-20, 2012.

2012 Gave an invited talk titled "Efficient Three-level Screening Designs using Weighing Matrices" at the International Conference on Advances in Interdisciplinary Statistics and Combinatorics held at the University of North Carolina, Greensboro during October 5-7, 2012.

2011 Gave an invited talk titled "Tight Mixed Orthogonal Arrays of Strength Two using Finite Projective Geometry" at the "International Conference on Design of Experiments" (ICODOE-2011) held at the University of Memphis during May 10 - 13, 2011

2009 Gave half of an hour talk titled “Galois Geometries and Designs” at the International Conference “Galois Geometries and Applications 2009” held at the Ghent University, Belgium during May 24 – 28, 2009.

2009 Gave one hour talk titled “Orthogonal Blocking in Mixture Experiments” to the participants of Workshop on Mixture Experiments: Theory and Applications” organized by Calcutta University during December 21-22, 2009.

Conferences Invited

2008 Gave an invited talk at the Pre-ICM International Convention on Mathematical Sciences held at Department of mathematical Sciences, University of Delhi, Delhi (India) during December 18 – 20, 2008. I also Chaired the Workshop on “Frontiers of Research in mixture Experiments” organized as a part of the Session on Design of Experiments at the international convention.

2007 Delivered half an hour invited talk titled "Optimal Balanced Residual Treatment Effects Designs" at  SIAM meeting held at Department of Mathematical Sciences , University of Memphis during May 4-5 2007

2006 Delivered half an hour invited talk titled "Optimal Asymmetrical Fractional Factorial Plans through Finite Projective Geometry" at the International Conference on Statistics and Agricultural Statistics on December 27, 2006 held at Indian Agricultural Statistics Research Institute, New Delhi, India during December 27-30, 2006. Also Chaired a Session titled “Emerging Issues in Areas of Basic Statistical Research” on December 28, 2006.

2005  Delivered half an hour invited talk titled "Optimal Fractional Factorial Plans using Finite Projective Geometry" at the International Conference on Design of Experiments: Theory and Applications held at The University of Memphis during May 13-15, 2005

2003 Delivered half an hour invited talk titled "Optimal Fractional Factorial Plans using Minihypers" at the SCRA International Conference held at the University of Southern Maine during October 3 to 6,2003. Also Chaired a Session.

2002 Delivered half an hour inivted talk titled "BCH Codes and Designs" at the R.C. Bose Centenary Symposium on Discrete Mathematics and Applications held at Indian Statistical Institute Kolkata during December 20-23, 2002.

2001 Delivered half an hour invited talk titled "Construction of Two Level Orthogonal Fractional Factorial Designs when a Set of Treatments are Debarred" at the International Conference on Design of Experiments: Recent Trends and Future Directions, December 27-30, Chairman, Organizing and Program Committee.

2001 Delivered an invited Presidential Address " Taguchi's Robust Parameter Design and its Alternative" at the 88th Session of Indian Science Congress, January 3-7, , 2001

2000 Delivered an invited talk at the Triennial Calcutta Symposium, December 26-28, 2000.

1998 Delivered an invited talk at the Conference on Statistical Methods for Quality and Productivity Improvement Current Trends Organised by ISI Delhi during February 5-6,1998

1997 Delivered an invited talk at the International Conference on Combinatorics, Information theory and Statistics held at University of Southern Maine during July 18-20, 1997.

1995 Delivered an invited talk titled "Designs for mixture experiments involving Process variables" at the Second International Triennial Calcutta Symposium on Probability & Statistics, Calcutta. 1995.  (Also chaired a session on Linear models in the conference).

1994 Delivered an invited talk titled "Group Structures for 2k-p fractional factorial designs" at the International Conference on Statistics and its applications in Industry Science and Technology held at University of Tokyo, Tokyo (Japan) 1994.

1994 Delivered an invited talk titled "Robust Designs" at the Indian Science Congress (Statistics-Section), Jaipur 1994.

1993 Delivered an invited talk titled "Hidden Projection Properties of Plackett-Burman designs" at the Annual Conference of the Indian Society of Probability and Statistics, Poona University, Poona 1993.

1993 Delivered an invited talk titled "Linear Graphs for 2k-p Fractional Factorial Designs under the Split Plot Designs" at the Quality Through Engineering Design, an Indo-US-Japan International Conference, ISI, Bangalore, 1993. .

1992 Delivered an invited talk titled "F-square designs combinatorially balanced for residual treatment effects" at the First International Triennial Calcutta Symposium on Probability and Statistics, Calcutta. 1992. (Also Chaired a session on Design of Experiments).

1991 Delivered an invited talk titled "Some new Linear Graphs for orthogonal array L64 (2 to the power 63) under split-pilot" at the International Conference on Probability and Statistics titled "PROPSTAT 91" held at Bratislava (Czechoslovakia) 1991. (Also Chaired a session on Multivariate Analysis).

1990 Presented a paper titled "Some new Linear Graphs for orthogonal array L32 (2 to the power 31)" at the International Conference titled "Recent Developments in Probability and Statistics", Delhi 1990.

Presentations-Other(Universities/Industry)

Presentations - Universities/Industry (refereed *)

2013 Gave a seminar talk at the Department of Mathematics, Indian Institute of Technology, Bombay, India on January 7, 2013.

2013 Gave a Seminar Talk at the Department of Statistics, Delhi University, India on January 4, 2013.

2011: Gave Seminar talk at the Department of Mathematics, College of Charleston, Charleston, SC on October 14, 2011

2010 Gave a seminar talk at the Department of Mathematics and Statistics, University of North Carolina, Greensboro in November, 2010

2004 Delivered Seminar Talk at Ohio State University

2004 Delivered Seminar Talk titled " Optimal Fractional Factorial Plan using Finite Projective Geometry " at Bowling Green State University

2004 Delivered Seminar Talk titled " Designs using Finite Projective Geometry" at Wright State University, Dayton(Ohio)

2003 Delivered Seminar Talk titled"Optimal Residual Treatment Effects Designs" at November Local Chapter Meeting (Western Tennessee) meeting Of ASA held at Univ. Of Memphis on December 5, 2003

2002 Delivered seminar talk at Baptist University, Hong Kong.

1998 Delivered seminar talks at the Univ. of Texas at Austin, Ohio State Univ, Columbus, Wright State University, Dayton and North Western University, Evanston, IL(USA)

1997 Given seminar talks at Kentucky University, Lexington, Northern Illinois University and Wayne State University, Detriot, MI(USA).

1996 Delivered lectures at various Universities of North America: Temple University, Philadelphia, University of Illinois at Chicago, Northern Illinois University, Dekalb,Ohio State University, Columbus, University of Ohio, Athens, University of Waterloo, University of Toronto and Bell Lab., Murray Hill.

1994 (i) Delivered lectures at various Universities of Japan: Science University of Tokyo, Mushashi Institute of Technology and Keio University.
        (ii) Delivered lectures at various Universities of North America: Carleton University, Ottawa (Canada), University of Houston, University of Texas at Austin, University of Texas at San Antonio, University of Northern Illinois and Wright State University.

1993 Delivered lectures at various Universities of U.S.A.: Bowling Green, Wright State, Northern Illinois, Southern Maine, Maine, and University of California at Santa Barbara.

1991 Delivered lectures at Charles University, Prague (Czecho.), Technical University, Vienna, Austria.

Other Presentations (refereed *)

1989 Presented a paper titled "Designs robust against time trend, A Review" at Annual Conference of the Indian Society for Probability and Statistics, Dharwad 1989.

1988 Presented a paper titled "Some Symmetrical and assymetrical Plans Orthogonal to Linear Time Trend" at the Bose Memorial Conference, ISI, Calcutta 1988.

1987 Presented a paper titled "A note on nested resolution III fraction in generalised foldover resolution IV design" at the IX Annual Conference of the Indian Society for Probability and Statistics, Delhi 1987.

1986 Presented a paper titled "Construction of Row-Column Confounding in fractional factorial design" at the Annual Conference of the Society of Mathematical Sciences, Delhi 1986.

1986 Presented a paper titled "Row and Column Confounding in 4n-l using pseudofactors" at the VII Annual Conference of the Indian Society for Probability and Statistics, Kolhapur. 1986.

1985 Presented a paper titled "Non-Orhogonal Designs of (s-1) series in Runs" at the Annual Conference of the Society of Mathematical Sciences, Delhi 1985.

1981 Presented a paper titled "Hadamard Matrics and their Applications in Statistics" at the Seminar on mathematics and its Applications, Delhi 1981.

1979 Presented a paper titled "Mean of outstanding elements" at the Indian Science Congress (Statistics Section), 1979.

1979 Presented a paper titled "Resolution IV Plans Robust Against Linear Trend" at the All Indian Seminar on Non-Parametric Statistics and Inference under ordered alternatives. 1979.

1978 Presented a paper titled "Construction of S.O.R.D through incomplete factorial" at the Indian Science Congress (Statistics Section), Hyderabad 1978.

1977 Presented a paper titled "Moments of record statistics" at the Annual Conference of the Indian Society for Agricultural Statistics, Delhi 1997.

1977 Presented a paper titled "Ladder Indices and Random Walk" at the Indian Science Congress (Statistics Section), Bhuvneshwar, 1977.

1976 Presented a paper titled "Records and Oscillating Random Walk" at the Indian Science Congress (Statistics Section), Waltair 1976.

1976 Presented a paper titled "Record Statistics - A Review" at the Seminar on Statistical Inference and Multivariate Analysis, Chandigarh 1976.

1975 Presented a paper titled "Coverage of a record value and related distribution problem" at the Annual Conference of the Indian Society for Agricultural Statistics, Jaipur 1975.

1974 Presented a paper titled "Distribution of Intersections Returns in a Generalised Random Walk" at the Indian Science Congress (Statistics Section), Nagpur, 1974.

1973 Presented a paper titled "Distribution of positive steps, intersections, Positive and negative returns in a generalized random walk" at the Symposium on Stochastic Processes and their Applications organized by MATHSCIENCE, Bangalore 1973.

1972 Presented a paper titled "Joint distribution of order statistics and upper record values in a restricted sample" at the International Symposium on Combinatorial Mathematics and its applications jointly organized by ISI and INSA, Delhi 1972.

1972 Presented a paper titled "Record Values" at the All India Seminar in O.R. Calcutta University, 1972.

1971 Presented a paper titled "Distribution of Record Value and the Problem of Number of Exceedeness" at the All India Seminar on Demography and Statistics, B.H.U. 1971.

Appendix A

Appendix B

Appendix C

Appendix D

Appendix E