There are also many Christians (Syrian/ Protestant IIRC) in India (Kerala State) who frown upon marriages among members of their community between members of other Christian denominations/religions, usually Catholics.
In their eyes, they are "purer/truer" Christians because their ancestors were converted by St. Thomas, the Apostle, whereas the newer Christian converts (usually the Catholics) were converted by "mere mortals".
We're deviating from the issue -- the Gujarat govt is kicking the nuns out, IMHO, purely because they are Christian. That's wrong. period.