Additional Chief Judicial Magistrate Apurba Kumar Ghosh of Bidhannagar court remanded her to five days police custody.
She has been booked under section 326 (voluntarily causing grievous hurt), 379 (punishment for theft) and 308 (attempt to murder).
She was arrested last evening by officers of Bidhannagar police commissionerate from an area on Rashbehari Avenue in south Kolkata.
The incident came to light on Wednesday after a CCTV footage showed the tutor mercilessly beating and torturing the kid.
But the family registered the police complaint after her husband came and threatened them not to lodge a complaint.
After the incident created a big furore, Singh went underground.