Punyi Pukur follows the story of Kankon at her in-laws' house and how her relationship with her in-laws take turns with time. It is a story of Kankon, who lives in a village and since she was not getting married, Kankon and her mother, Hoimonti always had to listen her uncle's taunts. Kankon's father is tracking lover and gets missing from her birth. Kankon's aunt Basumati and her sister Chhuti is always in favor of Kankon. Kankon is very much interested in idol making from a localite, Biswanath, who has a past. Later, Kankon marries into a wealthy house in Kolkata.
Kankon's husband Somudro is a professor at a college and with time falls in love with Kankon. Kankon too loves him, but both, due to their ego and pride do not confess to each other. Meanwhile, Somudro doubts Kankon's childhood acquaintance, Riju to be Kankon's lover. It is revealed that Kankon's marriage was fixed to Riju but it never happened. Kankon does not love Riju, but Somudro keeps on doubting her. And, in order to make Kankon feel jealous, he tells her that his friend Sayoni and he are in love with each other. Kankon is very much hurt but does not give in, thinking that she is a village girl and unworthy of him.
To make Kankon even more jealous, he brings Sayoni home and asks Sayoni to act as his lover and act as if they would be marrying each other. Sayoni is revealed to be in love with Somudro since a long time. But Somudro has never considered Sayoni anything more than a friend. On the day of Somudro's birthday, in front of everyone, Sayoni attempts to put a ring on Somudro's finger. But Somudro immediately pulls his hand away and in front of everybody grabs Kankon's hand and confesses his love for her.
Cast
Main
Monami Ghosh as Kankaboti “Kankon” Banerjee (née Mukherjee) – Chandra Shekhar and Hoimonti's daughter; Somudro's wife
Ronnie Golmes – Twin brother of Somudro who was lost after birth
Recurring
Banerjee family / Somudro's family
Aparajita Adhya[3] as Radharani “Radha” Banerjee – Debjit's first wife; Shrestha's elder cousin; Somudro's stepmother / adoptive mother. She stayed back in the Banerjee residence as she didn't accept the signature on the divorce paper with Debjit. (Deceased)
Bharat Kaul as Barrister Debjit Banerjee – Somudro's father; Radha and Shrestha's husband
Anushree Das as Barrister Shrestha Banerjee – Debjit's second wife; Radha's younger cousin; Somudro’s mother