Dr. Bhattacharya is interested in reliability theory, life-testing experiments, ordered statistics, and Machine learning applications in reliability theory.

• Ph D in Statistics, Indian Statistical Institute Kolkata (2016)
• MS in Mathematics, Indian Institute of Technology Kharagpur (2008)
• BS in Mathematics, University of Calcutta (2006)

• Compound optimal design for generalized exponential distribution under progressively censored data Journal of Statistical Theory and Practice (2024), V. N. Dhameliya , R. K. Maurya , Ritwik Bhattacharya.
• On the application of compound optimal design strategy in progressively type-II censored life-testing experiments Quality Engineering (2024), S. Chakraborty , Ritwik Bhattacharya, B. Pradhan .
• Generalized multiple dependent state sampling plan for quality inspection in ocean dataset Communications in Statistics - Theory and Methods (2022), Ritwik Bhattacharya, M Aslam.
• Simultaneous best linear invariant prediction of future order statistics for location-scale and scale families and associated optimality properties Statistics 56 (2022), N Balakrishnan, Ritwik Bhattacharya.
• “Survival analysis of Type-II Lehmann Frechet parameters via progressive Type-II censoring with applications” Axioms (in press), Ritwik Bhattacharya, A. Elshahhat,, H. S. Mohammed.

• D-optimal Joint Best Linear Unbiased Predictors of Progressively Type-II Order Statistics (2025), Volume London, UK, Ritwik Bhattacharya.
• Statistical Analysis using R software (2024), Volume Online, Ritwik Bhattacharya.
• Prediction in ordered statistics and its applications (2023), Volume El Paso, Ritwik Bhattacharya.
• On some prediction issues in order statistics (2021), Volume International Conference on Mathematical Sciences, S. V. National Institute of Technology Surat, India, Ritwik Bhattacharya.

• Prediction issues in progressively censored life-testing experiments: New ideas and applications
• Prediction of future ordered statistics with application to reliability life-testing experiments