The actress, known for her bindaas style and excellent comic timing as the Haryanvi police officer, had left the show earlier this year after being a key part of it for seven years.
Speaking of her comeback, Kavita said: "I feel like I've come back to my friends. In fact, everyone around me is so excited and kicked. My entry in the show has also been planned really well, with action sequences and stunts."
Kavita is "certain that the viewers are going to thoroughly enjoy watching the show as I continue to entertain them in a dhamakedaar andaaz."
During her time away from F.I.R., she was seen in Tota Weds Maina, another comic show on the same channel.
Kavita was replaced by Chitrashi Rawat of Chak De! India fame. The show took a 20 year leap and Chitrashi played Jwalamukhi Chautala, daughter of Chandramukhi Chautala.