A video secretly filmed by an Indian man – apparently showing his wife beating his elderly mother – has gone viral and led police to arrest the wife.

Sandeep Jain installed a CCTV camera in his mother’s bedroom as he suspected that his wife was regularly abusing the 70-year-old. He told police he intended to catch Sangeeta Jain redhanded.

The minute-long video shows Raj Rani Jain wrapped in a quilt in bed when a woman attacks her, hitting her repeatedly and dragging her by her hair.

Sangeeta was arrested after her husband complained to police on Monday in Bijnor district in Uttar Pradesh state.

Raj Rani was taken to hospital where she told reporters that her daughter-in-law slapped her and hit her with stones. “She was abusing me throughout the assault,” she said.

Police have begun an investigation following the release of the video, which has caused an outcry on social media with many demanding a severe punishment for the accused woman.

“We have recovered the video and questioned the woman. She will remain in custody,” Dharm Veer Singh, a senior police officer in Bijnor, told AFP.

“There is a history of violence between the accused woman and her in-laws. We will find out the truth,” he said.

Sangeeta denies the allegations, claiming the video is fabricated and accusing her husband of trying to frame her.

She has also filed a domestic violence case against her in-laws and the couple are seeking a divorce.