(subject to impulsive decisions and people I meet along the way):
November 5-end of December (India): Start in Mumbai, head north and travel from west to east with a potential detour in Nepal. Try and make it all the way to Darjeeling!
End of December (India): Goa for Xmas/NYE/Sunburn Music Festival, then journey south along the western coast to the tip of Kerala.
January (India—??): Move back up along the eastern coast before going on to the next country!
I’ve thought only in loose ideas beyond India, but have been considering a stopover in Sri Lanka (has anyone been?) then some time in Indonesia! Also on my list: Africa, Australia.