One has to start somewhere, and UTTAM is an effort and kaveri too to get some fundamental understanding of the subject in practical dimension. It took colonial masters decades to master things.....I think with if our current government is around for a decade or two you will see India in top 5 to 6 countries in most fields. It is more of a culture thing when it comes to productivity and innovation, India does not lack people with talent....it just has deficiency in creative culture due to our millenium of invasions.A fighter jet is not only a frame....
The frame is the faster you can fine tune : see Dassault that built the Rafale A in less than 4 years.
The most difficult is the radar and the engine : it takes to the best no less than 10 years from the beginning.
And after that you have to fine tune all the components together, so as to create a weapons system. See F35 : 14 years after preserial flight, the bird isn't FOC, despite huge money putting in.
As I said, is apple worth that much over cheap chinese make? or Prada bag worth that much over somethign else? If we can produce something that is good enough that should be good for us....does not have to be king of the hill right away. Having the correct goal is what leads to eventual success