What is your most precious and important Hindu Temple? Care to build a church inside it for Catholics? That's exactly what you are asking the Vatican to do, albeit in the inverse.
Comparing the Vatican (which is a theocratic state which exists for the propagation of the faith, not worldy matters) to India (which is a secular state totally different from the structure and purpose of the Vatican) is ridiculous, and you know it.
The Chief of the most precious hindu temple isnt going around ranting against christianity. The Pope and his missionaries are doing just that. The Catholic Church was responsible for the murder of 1000s of hindus in a brutal inquisition in Goa.
To compensate for all this the Vatican needs to open a hindu temple in its premises with the idols of all prominent hindu gods. The Pope and his council should come there and worship hindu gods as a show of tolerance of the hindu faith. The he should issue a formal apology to all hindus and jews in goa for the murders committed during the inquisition. Until that happens india should suspend ties with the Vatican