New Delhi, Jan 18 (Agencies):  Eminent political scientist, writer and foreign affairs commentator Bhabani Sen Gupta died on Tuesday because of prolonged illness.

"The veteran scholar breathed his last at the Apollo Hospital early on Tuesday morning," his family said. He was 89.

Professor Sen Gupta is survived by his son Shivaji Sengupta, daughter Sree Sengupta, daughter-in-law Susmita Sengupta, and seven grandchildren.

A respected and influential political commentator on international affairs, most notably on Southeast Asia and Indo-American relations, Sen Gupta authored over 15 books in English.

His books included analyses on Afghanistan, the Soviet era and on the regional issues in South Asia. Some of his notable works are 'The Fulcrum of Asia: Relations among China, India, Pakistan, and the USSR', 'The Gorbachev Factor in World Affairs: An Indian Interpretation', 'Communism in Indian Politics', and 'Afghanistan: Politics, Economics, and Society Revolution, Resistance, Intervention' among others.

Sen Gupta, also known as Chanakya Sen, was also a prolific writer in Bengali and some of his more famous books include Rajpath-Janapath, Mukhyo Mantri, and She Nohi She Noni.

The family members said that relatives and friends would assemble on January 22 at Chittaranjan Bhavan to remember him.