Instead of adding it to CK2, Paradox should have made a whole India game set in the early modern period. In the three main start dates India just consists of native states, not particularly interesting just like central Europe or France. When Islam enters the mix there's more contrast and conflict, but the late start-dates don't work very well in general. If there was an India game starting with the arrival of Vasco da Gama (with Babur soon to arrive from the north) and running until 1857, there would be far, far more interesting conflicts and dynamics going on.