Dhadkan is about Anjali (Shilpa Shetty) who is a girl that hails from an extremely rich and influential family. Her father Mr. Chauhan (Kiran Kumar) is a renowned businessman and has many dreams for his daughter. But Anjali is in love with Dev (Sunil Shetty) who is very poor and often cannot even afford to clothe himself properly. Dev also loves Anjali and wants to marry her so has to meet her father.
When Anjali puts forward to her parents the proposal of marrying Dev she is rebuked and meets an outright refusal, as they could not accept Dev. Moreover, her parents have chosen for her a wealthy suitor from Delhi. Not wanting to hurt her parents Anjali finally gives in to their wishes and marries Ram (Akshay Kumar) who her parents believe will be a perfect match for her.
Ram is a man of great ideals, who believes in giving a rightful place to his wife and respects her sensibilities. But, despite this he is unable to win Anjali’s love at first and their marriage remains on the edge. However, after seeing the magnanimity of her husband’s heart in forgiving and accepting her, she realises she has fallen in love with him.
For three years Anjali leads a life of bliss and becomes an ideal wife. But suddenly on their 3rd wedding anniversary party, Dev returns and is intent on winning Anjali back. Dev is now a wealthy businessman and now Anjali finds herself on the crossroads where she has to fight for her husband with her former lover. But Anjali is now in love with her husband and has no wish to return to her former love. When Dev realises she has no wish to return to him, he is intent on ruining her life. But the truth wins in the end when Anjali tells Dev she is pregnant with Ram's child. Dev realises his folly and accepts his friend and business partner Sheetal Verma (Mahima Chaudhry) as his life partner as she secretly loved him.