GUWAHATI: A woman from Boterhat village in lower

's

, Ronesha Bibi, was beaten up and tonsured by a mob after she filed a police complaint against her ex-husband's family for marrying off her under-age son.

The incident occurred last week but came to light on Saturday after a video of the episode was circulated on social media.

"Her ex-husband's family was unhappy that she had registered a case against them," SP (Dhubri) Longnit Terong said. On October 2, they confronted her and, after a verbal

, beat her up. In the video clip, several women who were part of the mob can be seen assaulting Ronesha, pulling at her clothes and shaving her head. She is now undergoing treatment in West

, local sources said.

Ronesha's husband Moynul Haque lodged a complaint with

Police after the incident. "We have arrested three women till now, identified as Ashiran Bewa, Mosiran Bibi and Fateza Bibi," police said.

The SP said a senior police official has been given charge of the investigation. "The victim's family, her ex-husband and the family of the girl her 19-year-old son was married off to will be questioned," police added.

Sources said the boy and his wife are not living together. "He lives with his mother as of now," a local added.

On Sunday, an Assam State Commission for Women team reached Dhubri to investigate the matter.