There is a big difference in ISRO approach and DRDO approach. ISRO works in the name of the civil applications and it is relatively much easier to obtain technologies for these applications...but for DRDO it becomes difficult to obtain the same technologies....moreover, DRDO has 50 labs and it is of course difficult to maintain the efficiency of such a vast number of laboratories..and lastly..it has to be agreed that ISRO has done a better human management job....
