Asthal Bohar is a math, or a spiritual habitat of the followers of the Guru Gorakh Nath sect. The followers of the sect are the ardent devotees of Lord Shiva. The math is located approximately 7 kilometres to the east of the main city of Rohtak on Rohtak-Delhi Highway No.10.
According to folklore, Pooran Bhagat, a resident of Sialkot now in Pakistan, and a disciple of Guru Gorakhnath visited this place. He loved this place so much that he built a math for his peers so that they could meditate and perform rituals as per their traditions. The math, however, remained in a state of neglect for some time, but was revived when Baba Mastnath, a reputed saint, reformist and luminary of the Guru Gorakh Nath sect came here in 1791.
The math houses a host of relics, ancient discoveries, sculptured stone idols, scriptures, books and several other objects of religious significance. It is regarded as one of the holiest and most venerated hermitages by the followers of Nath sect, especially the Kanphada yogis — ascetics with pierced ears.