India needs technology transfer not licensed assembly factored into the new planes they buy to replace the Mig21s. If they could run with Mig21s till now , I think whatever they get will stay for next 20 -25 years or so. However technology frog leap is needed, not incremental progress on whatever frontline fighters they get. It must incorporate stealth and all latest avionics. Off course no one will agree to technology transfer for that. I agree about involving companies like Tata to facilitate technology transfer with deadlines and disciplined operation in production. Patriotic factor kept in mind stringent rules are need to be developed to keep espionage . Stay away from Haliburton type super chor model like plague.