Bachelor of Medicine, Bachelor of Science, Calcutta University, 1967.
Physician Gunam Clinic, Singapore.
Chairman, board visiting Children's Home, Singapore, 1987. Board directors Singapore Young Men’s Christian Association, 1986-1989. Board governors, board directors Oldham Hall Anglo-Chinese School.
Member Malaysia-Singapore Vintage Car Register. Member Singapore Medical Association, College General Practitioners. Clubs: Singapore Vintage Car.
Lodges: Rotary (vice president, board directors 1985-1986, past president Singapore Main club).
Married Maureen Lim; 1 child, Alexander Walter.