Nain Singh Thapa or Nayan Singh Thapa(Nepali: नैनसिंह थापा वा नयनसिंह थापा) (died 1806 or 1807) was a Kaji and General of Nepal Army. Nayan Singh Thapa was brother of Bhimsen Thapa, father of Mathabarsingh Thapa, Queen Tripurasundari of Nepal and grandfather of Jung Bahadur Rana. He was the owner of Thapathali Darbar.
References
Nain Singh Thapa Wikipedia(Text) CC BY-SA