Raakshasaalaya devouka sshailayo madhyagata sootraga Roheetakamavanteecha, tathaa, sannihitam sarah From the above  Shloka , Roheetaka means present day Rohtak. Avanti is present day Ujjain  while  sarah  is identified as  Kurukshetra , which was once a lagoon called Shyamanta panchak . According to the story in the Surya Siddhanta and the Mahabharata,