He started his political career in
Communist Party of Nepal (Rayamajhi). He unsuccessfully contested the
1986 Rastriya Panchayat elections. After the
non-partisan panchayat system was removed and democracy was re-established in Nepal by the
1990 Nepalese revolution, Triphathi joined the
Nepal Sadbhawana Party. He was elected to the
House of Representatives from Nawalparasi 3 in the
1991 elections and retained his seat in the
1994 and
1999 elections. He was elected to the
House of Representatives from
Nawalparasi West 1 and was a member of the
CPN (UML) parliamentary party. On 14 December 2021, he announced the formation of
People's Progressive Party. He emphasized the need of a party concentrated towards
agrarianism, ideological debate and addressing the demands of
Madhesh and
Tharuhat region which were not included in constitution. == Personal life ==