Bodyguard

 
Balwant Singh is a bodyguard of Sartaj Rana (Raj Babbar) with high competences. Balwant dies to protect Sartaj. Balwant's wife was in danger during her pregnancy. Sartaj rescues her and she had a child named Lovely. 

 Lovely Singh (Salman Khan), now grown up, is the bodyguard of Sartaj Rana's daughter Divya Rana (Kareena Kapoor). He is very devoted to his duties but irritates her all the time by following her everywhere. 

  Consequently, Divya and her friend Maya (Hazel Keech) call Lovely and start a prank love affair. Lovely starts loving the mystery person but doesn't realise that it is Divya who was behind all of this. Divya tells Lovely that her name is "Chhaya". 

 Sartaj Rana suspects him and Divya to be in love and sends criminals to kill him in case his lover turns out to be Divya.

Sensing this, Divya sends her friend Maya to tell Lovely her true identity. In a twist, it is revealed that Maya is also in love with Lovely. She falsely accepts that she is his lover. They marry and have a child. Maya dies early and reveals to her son in her diary about her fraud and asks him to unite Lovely and Divya.

 Sartaj invites Lovely and his son to his house and apologises for his behaviour. Lovely is shocked to know that Divya never married. His son grows closer to Divya and on their last day of visit, while leaving, he asks Divya to accompany him as his mother. Lovely asks his son to apologise but he refuses. Sartaj tells Lovely that he too feels the same and he should take Divya with him.

At the railway station, Lovely and his son are accompanied by Divya. The son throws Maya's diary into the dustbin but Lovely sees it and retrieves the diary. He reads it and comes to know that Divya was his actual lover.

In the last scene, Divya is called by Lovely and he addresses her as "Chhaya". Divya realizes that Lovely has come to know of the truth and they hug each other, happily watched by Lovely's son and the movie ends.

Source : Wikipedia

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