HELP NEEDED!! PLEASE!

The story was that nandini nd manik are a married couple and have a daughter. And nandink is writing a diary about her and manik's past journey. They were cousins and nandini's dad got them married. But nandini's mother hated her husband's family so she brainwashed nandini against her dada, chachi nd manik and mukti. But nandini after her father's death goes back to her old house. But since their dada's health starts deteriorating they enter into a contract for 3 months that after dada gets healthy again manik will divorce her.

In these three months her perception about them changes and eventually they think of giving their marriage another chance.

Does anyone know the name.

Please help me out!!

Thankyou😊

Thankyou😊