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Tejas are already in service.8 LCA's have been inducted into the IAF .FOC will be achieved in 1 year.MK2 will be inducted in 2017.Unit cost of mk2 will be 45 million USD.whereas JFT mk2 will cost only $ 21 million GOOD things cost a lot of money!!
Good things.. or failures... both are expensive.
The same way Cheap stuff.. Cost effective stuff is inexpensive.
Choose your words carefully.