NIHAL SINGH, SANT, also known as Pandit Nihal Singh, a Sanskrit scholar well versed in Vedanta as well as in gurbdm, lived in Sikh times in the village of Thoha Khalsa, in district Rawalpindi, now in Pakistan. Pandit Nihal Singh is famous for his Sanskrit commentary on Japu, {hefapugudhdrthadipakd (Lamp which illuminates the deep and hidden meaning of the Japu) patterned on Sarikar`s Bhasya on Veddntasutra. According to the colophon appended to the manuscript, work on Gudhdrthadipakd was undertaken at the instance of an Udasi saint, Bava Buddh Sarup.