He is teaching Fertility Studies Family Demography, Public Health, Gender and Quantitative Methods in Social Science Research at JNU. His research deals with Formal Demography, Family Demography, Inequalities in Health, Nutrition and Gender status and its Social Determinants. He has been working on modelling of fertility, mortality and health transition and convergence across the states and social groups in India. Currently, he is involved in collaborative projects on Women and Child Health and Nutrition, Socio-Economic inequalities in Demographic and Health Outcomes in the State of Uttar Pradesh. Future research interests are transition in families and its implications, returns of family planning and fertility decline in India.