Why just a small stock?
And how is it that UK gets to violate the MTCR, sell missiles to Saudi Arabia and get away with that but India cannot buy long range cruise missiles from Russia without risking sanctions from the US/UK?
I’d assume that the IAF would buy only a small stock to start for a couple of reasons. It had purchased only a small number (estimates from 50-100+) of similar stand-off weapons (the Israeli Popeye or Russian KH-59) in the past decade or so. Another factor is that the IAF hasn’t taken to stand-off strike in a big way, preferring to focus on interdiction and air superiority missions though that will change. And then there are the issues of buying the air launched Brahmos which can be used on high value static targets and developing an Indian cruise missile.
About the MTCR, well since it’s not exactly binding, the UK and others can get away with what they want as long it’s ok with Uncle Sam.And I’d think that most stand-off weapons like the Brahmos and Storm Shadow have a range limitation for export variants (300km range, 500 kg warhead).