Simar returns and has to cope up with Sunaina's spirit who has returned for revenge from Baa and Kartik (Vikrant's mother and brother) who were the people behind her death. Roli meets Simar at a summer camp and pleads her to come back. Simar lives as Sunaina and raises latter's daughter, Sanjana while Roli takes care of Anjali.

To save Roli, Simar goes to Sunaina's family, faking her death and live as Sunaina as per Sunaina's husband, Vikrant's instructions. Jwala kidnaps Roli and while escaping, Roli unintentionally hits a car and a woman named Sunaina is dead. Simar and Roli save the family from Shobha, Shakti, Meghna Singhania, Bhakti and a politician Jwala Devi. Soon, Shaurya enters Jhanvi's life and creates trouble but Jhanvi shoots him to death. Simar and Roli find their long-lost sister-in-law, Jhanvi. Later, Khushi is exposed and gives birth to Prem and Simar's daughter, Anjali. She blackmails Simar to sign the property papers. Khushi tricks and becomes surrogate mother of Prem and Simar's child. Simar is pregnant but miscarries, which makes her to never become a mother. Roli tries to expose her, but Simar throws Roli out of the house. She tricks the Bhardwaj family and marries Prem's cousin, Sankalp. Soon, Khushi enters the Bhardwaj house to take revenge for her sister, Anisha's death and tries to kill Simar. Eventually, both Simar and Roli are accepted to Bharadwaj house. After some twists and turns, Simar-Prem and Roli-Siddhant get married. Prem's brother, Siddhant enters, who was expelled from the house. This creates problems as Simar and Prem start loving each other. However, Simar is late, and dressed up Roli is forced to marry Prem. On wedding day, Simar has to participate a dancing contest and Roli takes Simar's place until the latter returns. Simar marriage is fixed with a wealthy businessman, Prem Bharadwaj. Simar dreams of becoming a dancer but her parents are against her dream. The story revolves around the lives of two sisters from Vrindavan, Simar and Roli.

Sasural simar ka episode 705