Shivani Shivaji Roy comes as the new SP after City, where her sister has a friend named Pyari. she's a girl who sells the hand craft on road. She tells Shivani that she will throw a treat for her birthday on the upcoming weekend and invited both of them, while the were having lunch altogether.
But after one or two days, the girl gets missing. Shivani enquires about the girl but finds no clue. later she figures out that there is a sex racket and Pyari was definitely kidnapped for the same reason.
She is finally able to catch the boy Karan, who runs the gang within the challenged time of 30 days. That was the last day of her in that city as she was transferred due to contacts of the accused. The night she caught Karan was Diwali's night and she and her team worked for 48 long hours to catch the convicts and free all the girls.
The success was the strong will that punished the man at the place, instead of taking him to jail or court. Since, he would easily get bail due to political contacts or spend longer time on payrolls.