Sir, this aircraft will become a money pit. From spares to upgrades, the Europeans will milk us from out balls.
For top cover just pair RD-93 with Mirage 3/5 and upgrade the airframe with modern manufacturing, composites etc.
The real thing is the weapons + avionics. Now, even if we somehow acquire these, what is the guarantee that India will not be provided with codes/jammers to counter these? The knowledge for these is distributed throughout Europe and India/America/Israel have significant inroads there. All in all, a very, very bad idea.