With the POD of 500 A.D., have it so that India remains as geographical concept. The Indian subcontinent is recognized as a cultural region, but is inhabited by many disparate sovereign states each with different majority religions, such as jainism, buddhism, hinduism, the original trinity of Indic religious tradition. on top of this, there should also be islamic states (of whatever sect that makes the most sense) and perhaps Christian states in there somewhere. Is it possible to have an India that fits the bill with that POD? how much of history would have to be changed from OTL to produce such an India?