The decomposed body of an unidentified woman, aged about 35 years, was recovered from a farm near Sivagiri in the district on Thursday.
When farmer Natarajan of Thenmalai near Sivagiri went to his mango grove on Wednesday evening, unbearable stench was emanating from a huge flex banner dumped in the farm.
He found that a body had been wrapped inside the flex banner.
Alerted by Mr. Natarajan, Sivagiri police visited the spot on Thursday morning, retrieved the body, and sent it to hospital for post-mortem.
The police, who have registered a case in this connection, suspect it to be a case of rape and murder.
Further investigation is on.