Seems like India is woefully unable to maintain and fly their jets, aircraft far less developed countries operate with little issues. But it's not like they're a gold standard with regards to military aviation anyway.
About India ,IAF and their operational experience in the fighter aviation through many decades.Yes, there is that issue with the technical/maintenance staff ( so called ''technical culture'') , than atmospheric conditions which are very specific for the ''Indian subcontinent'' : very hot troposphere with much moisture and that 'sandy air' phenomena.All those atmospheric conditions don't know the difference between Russian and western made aircraft. Almost all technical problems with Su-30MKI were the problems with licence built ones.
Su-30MKI and why this large/heavy fighter has so big forward RCS even unarmed.