IAF down to 34 squadrons
Indian Air Force is down to 34 squadrons where as it requires 44 squadrons to be at ease against China and Pakistan.
Obsolete MiG-21s and MiG-27s
IAF's operational 34 squadrons include obsolete MiG-21s & MiG-27s, which are slated for retirement from 2017 onwards.
Serviceability issue with Sukhoi-30MKIs
Serviceability of even new Sukhoi-30MKIs (200 inducted of 272 contracted for $12 billion) is just about 55%.
Huge delay in Tejas project
There has been huge delay in operationalization of India's indigenous Tejas light combat aircraft. Still, the final operational clearance for Tejas Mark-I is unlikely by December 2015. Tejas Mark-II will be ready only by 2021-2022.
Delay in 5th-Gen fighter jets
The Final R&D contract for joint development of Russian 5th-Gen fighter jets is yet to be inked.