Hi Hardik, Welcome aboard TAI. I would suggest you to get in touch with some good dealers in Mumbai who deal in sell/purchase and import of vintage cars. In Mumbai their are many owners who own good vintage beauties. You may also tweet your query to Sir Tutu Dhawan, I had an opportunity to meet him at a recent Cartier event in Delhi. He would be able to guide you on the process of acquiring it.
Regards
Akash