Answer:
Father of Prithvi Narayan Shah is Nara Bhupal Shah.
He was the king of the Gorkha Kingdom. Nara Bhupal Shah father name is Birbhadra Shah and mother Malikavati Devi. His grandfather is Prithvipati Shah. He was married to Chandraprabhawati Devi (princess of Khaachi state) and Kaushalyavati Devi (princess of Palpa).