Only a fool would really think investing in India is a good idea. The govt and the people are too unpredictable. Even if you are doing well, you never know when the greedy eyes of the govt and the people would make you see everything that you worked for taken away. There is no fixed interpretation of the laws and a quick reinterpretation by govt can make you close shop. Nokia factory in TN suffered heavily because Indian govt had tax deficit and they thought on a whim it would be nice to make Nokia contribute for it.
Amazon cannot sell on its own name due to the FDI rules. So they have only have warehouses and related services which sellers can lease. But the govt wants to collect taxes from Amazon as if its is a retailer. So Amazon is in a place where they are restricted from selling, but still have to pay taxes for selling stuff.