More specialized aircrafts (probably based on same platform as Navy's Sea Sultan or other Embraer's small passenger liners) with EW, ESM, ECM/ECCM, SIGINT, COMINT, etc. capabilities must be inducted with TOT for 3 squadrons (one each for the 3 regional Commands).
We must have the capability to update softwares/hardwares & add more capabilities as per the changing threat environment.
The importance of EW can be drawn from the fact that IAF uses IN's P-8I in Ladakh area to monitor activities as they don't have any dedicated aircraft.