Even then, the frame are going older and older, and the RCS of Su30 will remain awfull.
It's a big upgrade, but only an upgrade.
During this time more Mig21, 27, Jag will be phased out.
In HAL ? like M2000-5 (with some problems and delay...)
The Mirage 2000 upgrade was
Expensive only because we got it done here in India
Also it is taking so many years , work is still going on
I believe that Dassault would have flatly Refused all The ISE work to be done in India , because the Technology and Equipment involved is Very High End