Also, here's a list of living(or marked living on wikipedia) notable Indian people born in 1923:
Ones I'm not sure are still alive are in italic
Mohan Lall Shrimal (4 January 1923) Former Chief Justice of the Sikkim High Court.
Shantabai Kamble (1 March 1923) Dalit activist, Marathi writer, mother of Arun Krushnaji Kamble (1953-2009)
Rajni Kumar (5 March 1923) British-born Indian educationist, Padma Shri recipient
Lingam Suryanarayana (16 May 1923) Surgeon
Ranajit Guha (23 May 1923) Historian of the Indian subcontinent, influential in SSG.
Sukh Dev (17 June 1923) Academic researcher, organic chemist who contributed to the development of Guggulsterone, Padma Bhushan recipient
Rameshwar Nath "Ramesh" Mehta (7 August 1923) Playwright, director, actor
N. A. Ramaiah (26 August 1923) Physical chemist, former National Sugar Institute director
Ananda Prakash Sen (20 September 1923) Former Justice of the Supreme Court
Keshub Mahindra (9 October 1923) Mahindra Group Chairman 1963-2012
V. P. Appukutta Poduval (9 October 1923) Independence activist, Gandhian social activist
V. S. Achuthanandan (20 October 1923) Kerala CM 2006-2011.
Avtar Singh Rikhy (23 December 1923) Former Secretary-General of the 6th and 7th Lok Sabja
Probably atleast three or four of these are already dead.