Tejas with growler configuration can make it more easier for point interception roles , enemy will lose bvr advantage due to a fighter jet with good ew capability is there to defend , and remaining tejas in the point defense role will take care of the attack formation of enemy .
And we already have GaN module fit for ew role , so using them won't cause much stress on limited electric power . Plus the aspj are being drag optimised for operation at higher speed and not damage maneuvers which your awacs can't provide .
@Zapper with awacs you can't do much manuvers if enemy lauches bvr against u and operating cost of awacs is much more than a tejas