I have heard some terrible things about the doctors in Ludhiana, India. I will recommend you to call CIC and explain them the whole scenario and ask them if you can change your doctor. One of my friends had the same situation, some extra tests were done on him to confirm that the scar was not related to TB, but I don't think it took 65-75 days for the results. Also, if your Dad has any other medical reports which show that the scar is not TB related, then you should take it with you to doctor. A minor scar in chest x-ray is a common thing and Doctor should not make a huge fuss about it, infact the tests could be done in Ludhiana itself, sending the x-ray reports thousands miles away to Mumbai sounds like a money grab. I hope you get a solution to this problem! Good Luck.