I was talking in context of SE Asian countries which have no enmity to Russia, so Russia will not oppose sale to these countries. Do you see any need to ponder over Russian rejection wrt sale to SE Asia?If they can, they will - based on their power n prowess to exercise their will when the recipient country does not fit their parameters.
Example of an imaginary scenario:
India and Ukraine are friends, Ukraine is collaborating with India to increase its space heavy lift capability from 4 tonnes to 6 tonnes.. If India wants to export these BrahMos to Ukraine, Russia will oppose.
There could be few more such examples similarly.
What is hard to understand here?
Your paragraph is full of inconsistency and a discrepancy.
A mere UN seat does not give you superpower nor stand in the way. Otherwise, France and Britian would have also qualified. Germany without a UNSC seat still wields more power in Europe than France or UK.The US is a superpower.
Russia and China = Great powers (UNSC members)
India = A regional power.
Overtime, either UN permanent seat would lose its value or India would be co-opted.