In the year 1845, he was adopted by his uncle, the Maharaja of Koch Bihar,
Shivenra Narayan, when his own son died at an early age. Later, upon death of his father on 23 August 1847, he was installed to the throne of Koch Bihar, but was only granted full ruling powers in 1860 upon his attaining the age.[2][3][4]
He was the first ruler of Koch Bihar to have English education. He had two sons, namely
Jatindra Narayan and
Nripendra Narayan. While Nripendra Narayan went on to become the maharaja of Koch Bihar, Jatindra Narayan became the
Raja of Chitranjan and Rupnarayanpur. He later took up the name J. Bose. His descendants, Salil Kumar Bose and Saibal Kumar Bose, are now considered the royal family of Koch Bihar, as they are the only descendants left of the
Koch dynasty.[5]
^Contested regionalism: a new look on the history, cultural change, and regionalism of North Bengal and Lower Assam by Rup Kumar Barman, 2007: pp: 50: s Shivendra Narayan had no issue, his adopted son Narendra Narayan was enthroned as the king of Cooch Behar in 1847 after his death. His first son was Jatindra Narayan who became the Raja of Chitranjan and Rupnarayanpur. He later took up the name J. Bose.His descendants, Salil Kumar Bose, Saibal Kumar Bose and his immediate family, are to be considered the royal family as they are some of the only descendants of the dynasty.
^The history of Koch Bihar 1850-1990 by Dr. Harendra Prasad - Vijoya Publishers, 1995 pp:258-61
^The Raj and the Princely State of Cooch Behar: A Study of Anglo-Cooch Behar Relations, 1772-1839 by Dr. Ratna Roy - Dipali Publishers, 2004 pp: 165-166
^A Directory of Botanic Gardens and Parks in India by R. K. Chakraverty, D. P. Mukhopadhyay - 1990 - Page 31