Set in Austria, Raghav Mehra works in his rich Indian family. He loves the rich and spoilt Sanjana who ignores him. Naina Batra, a woman close to her family breaks up with her fiancé Amit due to her heart patient mother Asha's illness and leaves to Austria for the operation.
Naina and Raghav become friends. Raghav's grandmother Indumati fixes Naina's marriage with his cousin Veer. On the wedding day, he leaves after which Raghav sacrifices his love and marries Naina who feels betrayed but soon trusts him.
Sanjana is pregnant with Veer's child. Naina helps Raghav start a business in Austria. Indumati falls into a coma. A buyer Rehaan Khanna enters. Naina meets his wife Ahana and agrees to become a surrogate mother. Raghav misunderstands that Naina has an affair and carries someone else's baby.
Without justification, Raghav divorces Naina. Veer marries Sanjana who gives birth to a daughter Veera. Ahana meets with a car accident planned by Rehaan's stepmother Harjeet, and dies after telling Naina that the baby is in danger.
6 months later
Naina lives in India. Raghav is an arrogant businessman. Indumati wakes up from coma and mistakes Ahana's baby to be of Raghav and Naina. Rehaan learns that Ahana hired a surrogate so he began searching her and also told about this to Harjeet who now wants to kill Ahana's baby.
Naina gives premature birth to a baby boy Ahaan. Naina and Raghav grow closer as they confess their love but part ways amid misunderstandings. Rehaan attacks Raghav thinking he had kidnapped the baby. Raghav presumably dies thinking Naina cheated on him and Rehaan is Ahaan's father.
Naina marries Rehaan to look after Ahaan, and acts to be possessed by Ahana's ghost. Naina reveals Harjeet's true intentions. She tells Indumati that her marriage with Rehaan is real. Harjeet is arrested and tries to shoot Naina but Rehaan sacrifices himself indeed but got saved by Indu, Naina and Ishaan. Naina gives birth to Rehaan's son named Neil.
7 years later
Naina, Rehaan, Ishaan, Ahaan, Neil and Indumati live happily. Naina works as a tuition teacher and points towards Raghav's photo when her students question about her love story. She tells them that Raghav is her life as he told her the meaning of love and she will be united with him in heaven.
