since your car is in India and Delhi I presume, I 'll give you a couple of numbers of ppl who work on such cars in Delhi. Call them and give them my reference and I am sure they 'll take care of you.
Gyan Sharma - 919810305470
Ravi Gopala - 919810478869
Tutu Dhawan - 919811022122
I 'll also get you a mechanics contacts in Lahore who helped us in repairing 3 cars which were passing thru Pakistan on the way to Sydney. The cars were a Jaguar XK 140 and two Austin Healey 3000's. He seemed a good experienced guy (in his late 50's)