Pakfa is purely Russian program , its not confirmed yet India did any investment in this project. Right now there is no concrete evidence. Because , recently news published in different outlet, India lost interest in this plane. IAF is skeptical about this aircraft. Russian reduce the Indian financial contribution for this craft from 6 billion to 3.7 billion if I am not wrong. Deadline for India is 2022....wait and see. Sometime Chinese walk in with cash and take over the whole project and Russian love cash.
Plus, MOD taking Rafale as 5th Gen...but still Rafale beat F22 in many fields . Ministry of defence.