India does not even have dedicated high altitude testing facilities for gas turbines so they had to send it to Russia for testing. The Russians told the Indians the testing results were shit, leading to the cancellation of the Kaveri .
Right because the J-20 now has domestic engines? You guys are complete jokes
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You can't even produce engine for low end fighter like FC1/JF17, forget about 5th gen engine by your own.
Just by testing it you can't call it success. Ask for more Russian engine, this is only think you can do.