I'm extremely bullish on India. I did study a fair bit of developmental economics and have been visiting India since the early 1990's. India has been transforming from a economic backwater to a great power status over that time, and I strongly believe it will transform from a great power now to a Superpower by 2060. I believe American economic hegemony is in decline (from the top and bottom) and it is only a matter of time before this will be evident to the world. Economic hegemonies are established from the top and the bottom. From the top means having the largest aggregate GDP. Having the largest GDP means that USA has large thunen world centers/core which create economic growth and dynamism. With Global periperhery (regions and countries) orienting there economies towards feeding raw inputs to the cores. USA has had the largest and most dynamic cores the world over since 1945, these cores are being challenged by new Asian mega regions (pearl River Delta, etc). USA economic hegemony is also declining from below which relates to having one of the highest total factor productivity and technological lead over competitors. China has been busy stealing tech and know how from the west, similar to what the west did to Asia during colonial times, if they won't share the technology/IP then steal it is the mantra. Out last 20 centuries 17 have been dominated by India or China, and the world is going to return to the World's Natural powers in this century.
Why India, because when democracies develop there economies they do so in a messy manner while simultaneously tackling all issues, corruption, law & order, low productivity, low skill labor force, infrastructure, capital mobilization/formation issues, unemployment, etc. Although democracies take longer to resolve issues, accurate information is available for decision makers, transparency is greater than other systems, institutions help to maintain the internal balance of power. India has some additional features such as a dominant religion which accepts that things will change and puts knowledge at the level of divine, a reverance for capitalism, largest & youngest population in the world.