 The village has 
two post offices, and one Panchayat Bhawan.Gahmar was settled by Sakarwar Rajputs, the descendants of Dham Deo Sikarwar who came from the vicinity of Fatehpur Sikri after Babur captured it in 1527 AD.They are closely related to Sakarwar Bhumihars and Kamsar Pathan, the descendants of Dham Deo Sikarwar's brother Kam Deo.