A Rothbardian-style analysis and revisionism of India's political and economic history would be fun.

An example would be to analyse how the interventionist and bureaucratic control of the economy during the British era made caste conflicts more pronounced, leading to an increased demand for affirmative action, which only made the problem worse, and the effects that the 1991 reforms had for better or for worse.

Or to verify the existence of private credit systems associated with temples and communities, study whether these systems had booms and busts, whether these were clamped down by colonial forces through active policy or displaced by paper money through market mechanisms simply because they were better systems. The Hundi system is an interesting rabbithole.