A 35-year-old woman Mastan Bi was attacked on her head with a dagger while she was watching a Telugu feature film in B.S. Cinema Theatre on R.S. Road in Rajampet town on Wednesday night.
The woman sustained three bleeding injuries on her head.
She was rushed to Rajampet Government hospital and then referred to a hospital in Tirupati in a serious condition.
The attacker was said to have fled. Rajampet Deputy Superintendent of Police M.Rajani and the police officials inspected the place. Rajampet One-Town police registered a case.