Appetite for `Make in India` and favor for homegrown solutions. Indian gov/companies is more capable of delivering a solution better suited for the many local languages. Instead of mandating, they should just try to put some more minds together and make a general purpose India super app to help citizens access gov services that isn't PayTM.
I don't see why the languages matter. AFAICT, the major factor here is making a stolen phone useless on as many networks as possible. The point of the GSMA registry is that one shouldn't be able to ship a stolen phone across the border (to Pakistan/Bangladesh/China) and sell it.