When the engine will be American then why not buy an American aircraft and license manufacture it? It is the same thing as a sanction by US can destroy both Tejas and the American fighter we used but despite sour relations between Pakistan and USA, USA Never stopped spares and maintenance supplies to PAF.
Tejas is just a Jumla, IAF is not serious about it. HAL is a joke.
AMCA is also going to become a 5.5 Generation joke.
When you buy only the engine it is called, Business
When you buy whole aircraft its called, Slavery/Begging . so you must be a IAF guy for sure for giving such logics.
Sanction can destroy Tejas ?? Really?? Tejas engines had imported middle of Sanctions during 1998 because it was a business kinda deal. On the other hand, Pakistan's F-16 owned by America. It is USA who decide technology/weapons/range of Pakistan 's F-16s and Turkey is another good example. Tejas is much better option than slavery of USA/Russia but of course our beggar armed forces only love more begging.
Tejas is not Jumla and for the matter of the fact , No project of DRDO is Jumla. Jumla is our armed forces who talks mountains but sell themselves for imports every time. Read about Israel's defence History then you might understand