DRDO has come a LOOONG way in the missile department, I think we can all agree.
It's going to be only a matter of time before we see the same affect with the next tank and aero projects!
And that is main reason of DRDO ineffectivness in other aero and tank projects.Best HR ,R&D and resources are all concentrated on missile dept.That is why they cant make success in other projects.I hope within one decade they will finish missile projects and then they will concentrated on other projects.