In 1958, he keenly participated in Bhadra Abagya Aandalon (Civil Disobedience Movement) launched by the Nepali Congress.

However, King Mahendra planned and executed a coup in December 1960 and expelled the elected government led by B.P.

[citation needed] In 2001, he lost the leadership ballot for Nepali Congress' parliamentary party to former prime minister Sher Bahadur Deuba.

[5][6] During his tenure as prime minister, his government was criticized for its slow aid response to the April 2015 Nepal earthquake.

[7] A historic agreement among the country's four major political parties was also made that year, which paved the way for the promulgation of a new constitution.

[9] He sought re-election but was defeated by KP Sharma Oli, leader of Congress' former coalition partners, the CPN (UML).

degree from a college in India according to his sister-in-law, he refuted those claims and maintained to have only received informal education.