He was a son of Kaji Bhimraj Pande who was minister during reign of King Prithivipati Shah of Gorkha.

[4] Kaji Kalu Pande (1714-1757) belonged to this family[5] and became a war hero after he died at Battle of Kirtipur.

Despite his initial resentment to the fact that the valley kings were well prepared and the Gorkhalis were not, Pande gave a 'Yes' to the operation, due to being insisted by Prithvi Narayan Shah.

The Gorkhalis had set up a base on Naikap, a hill on the valley's western rim, from where they were to mount their assaults on Kirtipur.

[16] The Gorkhalis had set up a base on Dahachok, a hill on the valley's western rim, from where they mounted their assaults on Kirtipur.

[20][21] King Prithvi Narayan Shah's letter to Sardar Ramakrishna Kunwar mentioned by historian Baburam Acharya quotes disheartenment of King Prithvi over death of Kalu Pande: "When Kalu Pande was killed in Kirtipur, I had felt disheartened, thinking that I had not been able to conquer the three towns of Nepal.

"[22] King Prithvi Narayan Shah formed an alliance with Basnyat and Pande families of Gorkha in his quest for the unification of Nepal.

[23] As per his Divya Upadesh, King Prithvi Narayan is known to have arranged the marriage between Kaji Kehar Singh Basnyat, the second son of Senapati Badabir Shivaram Singh Basnyat, and Mukhiyani Chitra Devi, the daughter of Kaji Kalu Pande.

[23][24] Shivaram Singh Basnyat was addressed as Senapati Badabir (Brave Chief of the Army) in all the documents of that era.