To be honest, religion has often been a matter of utility.
I refuse to believe that religion can be separated from vested interests.
If some find that another religion is better, grants better status or ensures protection, begets benefits etc then they will convert.
On other hand many promote religion just for sake of leadership, becoming self styled protector, representative or expert on religion and getting followers.
I don't see anything wrong with conversion. Constitution gives freedom to practise, propagate any faith. Only forced conversions are wrong. Voluntary ones, I don't mind.
However I wonder when will people rise above identity politics in India? I hate everything reduced to religion, region, caste or gender.
Religion ought to be strictly personal. It shouldn't heavily influence public discourse.
Had it not been a big deal, nobody would have done juvenile things such as threatening to convert!