is a  Tehsil  in District  Rewari  of state  Haryana  in India. It is situated 80 km from  Delhi  in National Capital Region (India) . According to  Mahabharat ,  Tomar  Clan was once a part of  Yadav  Clan. Kosli village was established by  Kosal Dev Singh  in 1193 A.D  [ 1 ] ,