"Following the acid attack she had sustained burn injuries on her face and other body parts and after initial treatment in Chittoor she was shifted to a private hospital in Chennai. The exact cause of death as of now cannot be linked to the burns suffered...She had also developed some health complications," a senior police officer said.
"Only after getting the medical report we will know the exact reason," Tirupati DSP J Srinivasulu told PTI over phone.
The couple had divorced a few years ago.
The attack triggered angry protests by women, social activists, students and political parties. Khaja was arrested on August 7 and is presently in judicial custody.