The sack containing the body of the woman, around 25 years of age, was found this morning by some people, following which they informed the police.
The body, which is yet to be identified, bore injury marks on the neck, suggesting that she might have been strangulated with a rope.
The body has been sent for post-mortem, police said, adding that after getting the autopsy report they would be able to ascertain whether she was sexually assaulted before being killed.