Former Mumbai police commissioner R D Tyagi's son Raj Tyagi was arrested on Wednesday for allegedly stalking and intimidating his estranged wife in the western suburb of Bandra here, an official said.

According to the police, Raj Tyagi, who had come out on bail a few days ago in a domestic violence case, was apprehended by the police based on a complaint lodged by his estranged wife, who lives with her four children in Bandra (west), the official said.