Situated in Narwana tehsil, about 10 kms. east of Narwana on Narwana-Tohana road, Dhamtan Sahib was anciently known as Dharmsthan (religious place). It is believed that Rishi Valmiki had his ashram in Dharmsthan, and it was here that Lord Rama organised the Ashvamedha Yagya.
Also there is a Manji Sahib Gurudwara here and it is also believed that ninth Sikh Guru, Guru Tegh Bahadur, stayed here. The Gurudwara, which looks like a fort, was built in Guru's memory.