Unit cost:
F-16 is $17 million.
Tejas is $31 million.
How much was India planning to sell Tejas for export ?
Those are the numbers from 1998, by now it will be around $30M if we add inflation. F-16 B52 goes for $55M a piece and the ones they offered to India cost around $65M.
PS:Morocco bought 24 F-16 B52 planes for $2.4B which translates to $100M a plane.