Yes, IAF requirement were challenging and applied su37 tech and french parts into su30 and became su30mki. su27 and su35 different.But SU-37 acted as a Testbed for TVC (Thrust vectoring control) and TVC was used in Sukhoi SU-30 MKI. So in some way, Sukhoi SU-37 played a role in the Development of SU-30 MKI.
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