Regarding Mark Tully:From Wikipedia
Sir William Mark Tully, KBE (born 24 October 1935) is the former Bureau Chief of the BBC, New Delhi. He worked with the BBC for a period of 30 years before resigning in July 1994. He held the position of Chief of Bureau, BBC, Delhi, for 20 years. He has received awards and written books. He is a member of the Oriental Club.
Tully was made an Officer of the Order of the British Empire in 1985 and was awarded the Padma Shree in 1992. He was knighted in the New Year Honours 2002, receiving a KBE, and in 2005 he received the Padma Bhushan. BAFTA in 1985 for lifelong achievement. He was conferred the coveted RedInk Lifetime Achievement Award of the Mumbai Press Club.
.......https://www.bbc.com/news/world-asia-india-23678823Why Mark Tully needs a Calcutta birth certificate at 78
British journalist and former BBC India correspondent Mark Tully explains why he is trying to obtain a copy of his birth certificate from the municipal authorities in the eastern Indian city of Calcutta at the age of 78.
I cannot remember when I last needed a birth certificate or how it came about that the place of birth on my passport is Calcutta.
But recently, while applying to be an "Overseas Citizen of India" (OCI), I have found that this is not correct, or may not be correct.
I have been told that Tollygunge, where I was born, was not included within the municipal limits of Calcutta in 1935, the year of my birth.
So I have applied for a copy of my birth certificate to support my application to become an OCI.
Being an OCI allows me to retain my nationality, but I am also issued a lifelong visa for India, allowing me to work and live in the country indefinitely.
I hope I will be allowed to keep my place of birth as Calcutta because I would hate to lose my connection with that great city.
My connection with Calcutta stretches back a long way.
It goes back at least to 1857, the year of what my maternal great-grandfather would have called the Indian Mutiny.....My maternal grandfather made his living selling jute in the city. He bought the jute in what is now Bangladesh, which is how my mother happened to be born there.
It is obvious to me that as Mr. Tully came to work in India in 1965, the visa rules were different those days. Those days is was possible for Commonwealth Citizens to come to work in India. Wikipedia says that he came "back"
to India. Perhaps he possessed originally a British Indian passport. This was common in my father's generation and they did not need a visa or work permit to go to the UK.The BBC news makes it clear that he now has OCI and a British citizenship.
PS. One more thing, Surajji writes "There's no other nation with a non-immigrant visa that is infinitely renewable." This is not accurate. I know at least one that allows this. Perhaps there are more. Again, as he wrote "self interest" is the factor that determines this. A sovereign nation can do whatever it pleases in this regard.