Muskaan joins the Sharma family for a vacation in Thailand on a false pretext by lying to her father for the first time; over the course of the 7-day bound, her actions irritate Abhishek to no end, as he wants her to behave in a specific way.

An altercation between the lovebirds eventually culminates in Muskaan announcing that she doesn't want to marry Abhishek, despite Siddhant having secretly decided in favor of it.

Siddhant comes to terms with his son's desire to marry a girl of his choice, and lets Abhishek and the others choose their own paths in life.

Later, he meets Muskaan and brings her back to the Sharma family, while making the same deal to her father that he had made to Abhishek.

[citation needed] The soundtrack of It's My Life was composed by Shankar–Ehsaan–Loy in their only collaboration with Bazmee, and was released by T-Series in the week immediately preceding the film's premiere.