I think MRCA will help but India should focus on the following
1. India should invest heavily in force multipliers and AWACS. Simultaneous and simulated offensive defence doctrines with an emphasis on retaining air superiority in Indian skies should be put in place.
2. India has recently shown interest in acquiring SAMS . India should protect its strategic assets in J&K especially and border areas generally. Akash and Brahmos should be adopted for defence and offence respectively and innovatively employed to surprise the enemy. After all surprise is a big weapon.
3. India should buy atleast a dozen IL 76 and get DRDO to build indegeneous mid air refueller technology and start a new thread and get NAL to work on such projects with home grown aircrafts for the longer term.
4. India should buy predator drones from Israel for the short term and invest heavily in unmanned vehicles as they will be the technology of the future.
5. Tejas Mark II should be developed to replace Mig 21s and should be inducted in large numbers. Tejas should be used in combination with superior and well proven aircrafts to gain advantage in numbers and impose authority with SU-30 MKI and Mig 29s.
6. LCH should be used for battle area superiority and with Arjuns and T90s. The radars India is developing for years should be deployed in huge numbers along the border for pin point accurate of enemy movement.
Air superiority is India's need. It cannot be compromised.