Pragmatism isn't betrayal. We all know who has more to offer- the US or Iran. The Iran-India relationship has always been one of necessity and not genuine friendship.
Necessity as well as friendliness.
But given the concerns of Israel, which is also a friend and partner, some cuts are unavoidable. 11% is not too high, I think up to 15% is OK.
Best for the parties to settle their dispute.
I have been saying that this is not a good time for Iran to be inflexible. Better to develop its economy and industrial base, remain in peace with others in the region.
BTW, China has also cut oil purchases from Iran ... why the focus on India.