Her unusual team of deputies consists of her two inquisitive little grandchildren, Anjali and Nakul, her divorced daughter, Priya Sinha, and a couple of teenagers, Rohan and Neeti.

The search for one lost little girl leads Naani & Co. to a racket where the stakes are high, the criminals are ruthless, and their leader is powerful.

The two squabbling teenagers fall in love; there is a whiff of a romance between Naani's divorced daughter and the dashing CID Inspector.

Shashi Baliga of Hindustan Times gave the film 1.5 out of 5, writing, "Debutante director Romilla Mukherjee has her lead actress play the nani sugary-sweet, most of the characters verge on caricatures, and there is some pretty amateurish acting (save for Ankur Nayyar as a CID Inspector).

"[1] Shubhra Gupta of The Indian Express wrote, "Detective Naani could have been a perfect summer hols film...

"[2] Indo-Asian News Service wrote, "After a good beginning and an average middle portion, the last few reels manage to pull back the movie, saving it from being an entirely lame exercise.