That's not correct since it's about basic training of systems, techs and flying, which is the same as for IAFs Mig 29UPGs, the carrier training is not included. Also the Mig 29K is based on the M /M2 airframe, which is the same for the widely sold SMT version and the radar, weapons and techs are also the same, just like the UPG once. The Mig 35 on the other side has new systems, like the AESA radar, or the optronics and as said, the airframe was meant to have changes as well and would be new too. So the number of of MMRCA doesn't really make it much cheaper, especially since the new capabilities makes the fighter several mios costlier first, because the development costs for AESA, OLS, or TVC will be added, which are not diverted to any other sold Mig. There is no way the Mig 35 could cost the same, let alone be even cheaper than a Mig 29K!
Btw, the follow deal for the 29 x Mig 29Ks, was for $1.5 billions =>
$51 million per unit!
Russia Delivers Four MiG-29K Fighters to India in Dec. | Defense | RIA Novosti
Exactly because the Russian never offered anything that would be worth negotiating. The fighter is technologically and capabilitywise clearly inferior to Rafale or the EF. The industrial advantage is not existing, the operational and future upgrade costs the highest and former Air Chief Naik even openly stated that IAF don't want to put all eggs in one basket wrt the Mig 35 offer in MMRCA.
That's wrong, they get the same Mig 29K that we have, except of the western and Indian customizations. They don't have AESA, OLS or TVN:
Russian navy signs for MiG-29K fighters
Of check the pics of the Maks 2011 air show and you will see that neither OLS or TVN is fitted and the AESA was not ready developed when the order was placed, especially the A2G modes.