The causes of Gender Biased Sex Selection (GBSS) are well known. However, the unfolding consequences of this harmful practice are still being studied. We are thankful to the UNFPA India Country Office for having agreed to our proposal to research three themes focusing on the correlates and consequences of GBSS. These themes focus on: the role of class and education in explaining India’s gender imbalance trajectory, the present and future contours of the marriage squeeze, and the relationship between crime rates and sex ratio imbalances. Bringing together quantitative and qualitative data, the three papers shed light on hitherto unexplored dimensions of the GBSS phenomenon.