I find it offensive that you are misleading us on purpose to keep this fairy tale "somewhat believable" for us Pakistani audiences. Thanks but no thanks. We are all adults here. We don't want the "lite version".
Why would you stop at Indian subcontinent? Greater India includes all of Southeast Asia, Philippines, Tibet and Afghanistan too. By Definition, everyone was a "Hindu".
https://en.wikipedia.org/wiki/Greater_India
The problem here is of course that there is no "definition". Ignore the pseudo scientific colour coding, everything shown in this map is claimed by Indians or Hindus in one way or another. That should put some perspective on things.
@Kaptaan Here is the actual definition of India according to Indians. We were receiving the lite version all this time.
I am proud that Pakistan's Indus region named everything in this map. Amazing.