5 squadrons @ 16 items would be needed, along with Tejas, to take the total to 39 sqds after all decommissions, circa 2020-2023. After this, add 4 sqds of 5th Gen fighters like FGFA. Needs quick induction in 2018 to 2023 time-scale.

After Manohar Parrikar's push, India & Russia revive talks on fifth generation fighter programme