The victim Vivaan Kandu

On Friday morning, the Malad police arrested Indu Kandu, the aunt of the 2-year-old Vivan, whose body was found in a plastic bag in Kachpada, Malad, on Tuesday. She was the prime suspect in the case as the police discovered a bag similar to the one Vivan's body was found in - both from her husband's workplace - at her house, and then it later came to light that she was allegedly in a relationship with Vivan's father, Sandeep.