I wrote this before once,
The indian students who came to Canada, the vast majority of them are Indian Punjabi Sikhs who already are very averse to India due to an event that happened in 1984.
If they ever climb up the ladder into positions of power, they will become like the already existing Indian-Canadian community that is well-settled here since 1980s, and they are vehemently anti-India.
Don't expect them to ever have any affinity for India.
The strategy you're speaking of probably works in US. The Sikhs don't go to US much.