Dude take it easy if Kunal Biswas has advised you i'd say you better take his advice, by going into semantics you are trying to stonewall others.. Regarding your claim on PAC Kamra developing Jf-17 with chinese is something that needs a thread in itself, till now there is no information on PAC Kamra doing any kind of R&D work in developing jf-17, PAC Kamra is just being used for overhauling and rebuilding aircrafts of french and chinese origin aircrafts/components ... So the claim made by PAF over co-developing JF-17 is not believable...Comparison of Tejas and JF-17 should be in technical area only.. if comparision is made wrt development phases of both the aircrafts , then both the aircrafts are poles apart.. i would suggest you to go through " ersakthivels " extensive discussion on Tejas probably then u'll understand its merits, also the problems it had to face...
Please do go through ADA's publications , you will see for yourself as to how much work has gone in developing Tejas aircraft.. seriously mate i'd request you to read through those pdf's, ADA has developed so many centers of excellence in avionics, assembly, manufacturing, Carbon Fibre Composites, anechoic chambers, wind tunnel facilities and several other facilities had to be developed from scratch to aid in TEJAS development..
Compare ADA's momentous efforts to PAC Kamra efforts, PAC claims to have developed 4th gen aircraft with the chinese in 30 months
. I'd rather believe they would have taken 30 months to assemble one JF-17..