China has massive presence in universities and R&D institute as well. They are dealing in both vertical and horizontal. They started with horizontal, made money started funding institutions abroad and now have good presence and they are getting it vertically. That is the main difference and that's why your JNU, Oxford, MIT, and many other Australian unis had professors students working on chinese funded projects. And this is why 5g issue got raised.
So how will that help us get Su-57's "vertical" ToT?
So that means, by 2030 the deals will be signed if already in process, before that I don't expect MoD to even look into the brochure. And first one will come by close to 2035-40. But where will be China by then? And if this is the scenario then India should forget AMCA being realized before 2035.
Only you understand those dates.
Why? the R 37M is a different variant from R37. Brahmos AAM version is still 5-6 years away. You have to match the Chinese now, getting few R37M can do the job. More over the R77 and R 37 use the same kind of seeker. One the booster stage separates the kinematic energy is same as R77m.
The R-37 and R-37M can't take down fighter jets from long range. Doesn't matter if the seeker is better than R-77. Look up the dimensions and agility of the missile.