Yes, it is the most tested aircraft.... You know why??? we started this aircraft without any basic know how to create a Modern fighter aircraft.
100% Indian effort in this..... We tried doing each and everything for this system... We even created MMR and Kaveri engines...
Kaveri is undergoing evaluation in france and Our MMR is being co developed with Israel...... Avionics and softwares everything Indian...
You know something, This aircraft was started as a 3rd gen aircraft in 1980's, the IAF's demands changed ever sice and Now it is a 4.5 gen aircraft ready for induction, as It has been given LSP and will get IOC soon....
If you havent seen this video, I advise u to see it
YouTube - LCA (light combat aircraft) HAL TEJAS.