[17] He was only 23 when he led the union at national level, appointed and favored by BP Koirala during the 1980 Nepalese governmental system referendum.

He served as Deputy Prime-minister of Nepal in Puspa Kamal Dahal second cabinet with Home minister portfolio.

[23] Nidhi, a close confidant of prime minister Sher Bahadur Deuba fielded candidacy for the post of party president leaving the camp in the 14th general convention of Nepali Congress.

[24][25] He was able to gerner nearly 6% voters opening the way for second round of election as Deuba who obtained 48% votes was unable to cross 50% mark even after joining hands with leader Krishna Prasad Sitaula.

[28][29] In the 2022 Nepalese general election, he chose to stand as a candidate for the House of Representatives from Proportional Representation list.