YOUR WRONG AGAIN
You forgot that nearly half the combat fleet is actually these beasts here
You may have forgotten too, that there are major issues with the MKI's. One is that the aircraft's lack of a "modular engine concept." According to Indian officials this makes maintenance and serviceability highly troublesome and will make surge operations hard to accomplish as much of the work can't be done by the Indians themselves. Russian power plant's are known to have comparatively low time between overhaul (TBO) intervals. Once it reaches this interval, usually the engine has to be shipped to a depot for total refurbishment, which often times is in Russia. For instance, the AL-31 thrust vectoring engines that power the Indian's SU-30MKIs had a
TBO of just 1,000 hours.
On a positive note The Indian airforce has decades of experience of dealing with the Russia's jet engine industry as a whole, as the Indian Air Force is still flying everything from the MiG-21 to the MiG-29K till this very day. The MiG-29K in particular, which is the country's only carrier-capable fixed wing fighter, has had major readiness and quality control issues too. (Please see the links below)
http://www.thedrive.com/the-war-zon...pproaches-to-uss-nimitz-during-malabar-drills
https://foxtrotalpha.jalopnik.com/taking-off-in-a-mig-29k-from-a-carrier-at-night-is-a-fi-1655853601
"India's MiG-29K force remains controversial as the aircraft is reported to be
ill suited for persistent use under harsh carrier conditions,
with ongoing major engine, flight controls, and airframe issues. The type has a miserable availability rate, with India Today reporting:
"Serviceability of the warplanes was low, ranging from 15.93 per cent to 37.63 per cent and that of MiG-29KUB ranging from 21.30 per cent to 47.14 per cent. Serviceability refers to the total number aircraft available for operation at a time from the overall capacity... the service life of the aircraft is 6000 hours or 25 years (whichever is earlier) and with issues facing the MiG-29K/KUB, the operational life of the aircraft already delivered would be reduced."
Even arguably your most modern and capable Russian fighter, the Su-30MKI, has been
plagued with engine problems and other issues with failing components that have caused major deficits in aircraft availability. Even after a corrective spare parts deal was initiated the Su-30's
woes have continued.
Buying Aircraft's in small quantities
The IAF's small fleet of Rafale's will be prohibitively expensive to sustain, but when it comes to high-end fighters like the FGFA, the costs can be crushing. Additionally, since India already faces supportability issues with its other late-model Russian-built fighters, an even more advanced and complex one that Russia isn't even buying in quantity could result in a similar but even more acute set off issues with the FGFA. HAL is supposed to receive large industrial offsets as part of the FGFA program, but full technology exchange is unlikely. As such, the Indian Air Force will still have to rely on Russia for production and servicing various components of the aircraft.