There is a IOS app called AltLimitTELLO when connected to the tello you can hack the height restriction. Don't
know if you can get that app or will work in India, but it works great for me if I want to take the tello to new heights.
But There's no difference between indian tello & international tello versions. As i have spoken to Ryze Tech & Also My DistributorThis seems to be a restriction baked into the firmware. so the only option is to buy one (online?) that was not specifically made for the Indian market