Zaroon Shah, an NRI reached India to meet Kaynaat Shah to fulfill his father's wish though he himself is unwilling. When he arrives, he spots and falls in love with Kaynaat's look alike cousin Saltanat at first sight.
Upon seeing Kaynaat, Zaroon is confused on seeing their difference. Orthodox, Kaynaat lived and dressed in a traditional and conservative manner. Free spirited modern, Saltanat lived on her own terms and conditions.
Zaroon refuses to marry Kaynaat. Saltanat falls in love with him too. They decide to get married. Kaynaat plots against Saltanat hoping to keep them apart but fails. Soon, Saltanat discovers her conspiracies.
Her mother Zehnab reveals to her that Kaynaat is her twin sister not cousin and convinces her to not expose Kaynaat. Zaroon and Saltanat get married. Kaynaat does several attempts to take her place, but fails.
Madhav Sharma wants revenge from Kaynaat as 12 years back, she killed his sister Sakshi for having an affair with Kaynaat's father Khasaan; Zehnab helped her cover up the murder. Eventually, Kaynaat's truth is exposed.
Zaroon and Madhav join hands to fight against Kaynaat. Madhav starts falling for Saltanat, who lost her memory but regains it. She and Zaroon unite. Madhav goes to Delhi with his son Krish and promises to write to Saltanat every day.
20 years later
Grown up, Krish resembles Madhav and reads his diary, where he confessed that he wrote letters to Saltanat every day but could never post them due to his one-sided love for her.
Krish goes to a dargah and prays. He meets Saltanat and Zaroon's daughter Shaira Shah. They share a smile. The show ends with new beginning of Shaira and Krish's story.
