The question is that if F-35 wll be pitched for Indian market ? I'm afraid USA will not go for selling stealth technology to India.If India were to increase it to full 2%, that alone would be 16.4 billion dollars additional per year. They should do it for 3 years and buy 72 F-35s plus associated expenses in their upkeep. Chez republic got 24 F-35s with weapons and training for 4.56 billion. Assuming we get it for 6 billion dollars, it will cost us, 18 billion dollars. Add 2 billions for additional air bases and upkeep. 20 billion dollars over 3 years. Remaining 28 billions can be invested in speeding up AMCA program.
The best option You got is Sukhoi which proved to be not a significant aircraft!