Sometimes a wrong decision gives us lifelong sorrow. This is the story of Agastya Singh Raghuvanshi and Prerna Sehgal. Both Agastya and Prerna were college friends and childhood lovers. People in the entire college praised and gave examples of his love. After finishing college, Agastya and Prerna talk about marriage at their respective homes. Where Agastya's father is against this marriage due to some enmity. And Agastya is presented with two options - love or family. In which Agastya chooses his family and breaks Prerna's heart. Will Agastya and Prerna ever get back together? And will Agastya realize his mistake? Will Prerna ever be able to forgive Agastya for breaking her heart? Keep reading "His Childhood Sweetheart" to know