That may well be the case, but having followed Indian military for almost a decade I can say I have never heard any serviceability issues with western equipment's. Its mostly the Russian ones. Just for reference the C17 Globemaster in less than a decade has more flight time than IL 76 which are with IAF for over 3 decades mainly because of operational issues.
A simulator for the aircraft had been installed in 2012, but could not be used for training because IAF & manufacturer couldn’t finalise a usage contract.
CAG report blames ‘inadequate training’ for 2014 Super Hercules crash that killed 5