Hum Aapke Hain Koun..! 1994

Orphaned brothers Prem and Rajesh live with their uncle Kailashnath. Rajesh runs the family business, and his relatives are on the lookout for a suitable bride for him.

One day, Kailashnath meets his college friend, Siddharth Chaudhary, who is now a professor. He and his wife have two daughters named Pooja Chaudhary and Nisha Chaudhary.

To strengthen family ties, Kailashnath and the professor arrange a marriage between Rajesh and Pooja Chaudhary. From their first meeting, Nisha Chaudhary and Prem begin a playful, lighthearted bickering that lightens the mood around the wedding.

Pooja and Rajesh’s marriage brings joy to the family, and soon they are expecting their first child. Pooja’s parents cannot attend her baby shower, so they send Nisha, who is present at the birth. During that time, Nisha and Prem fall in love with each other, but keep it secret. When the time to part arrives, their hosts are dejected, especially Prem, who promises that they will reunite.

Pooja visits her parents’ house and Prem accompanies her there. Upon arrival, Pooja learns that Prem and Nisha are in love and gives Nisha a necklace as a token, promising to get them married.

Shortly afterward, Pooja slips on the stairs and dies from a head injury, leaving the family shattered.

Nisha takes good care of Rajesh’s son, and Kailashnath and Siddharth decide that Nisha should marry Rajesh. Nisha overhears her parents talking about her marriage into Kailashnath’s family and thinks they are discussing her marriage to Prem, to which she agrees. Later, at a pre-nuptial ceremony, she finds out that she is actually going to marry Rajesh. Prem and Nisha vow to sacrifice their love for Rajesh and his son.

Moments before the wedding, Nisha asks Prem’s dog Tuffy to give Prem the necklace that Pooja had given her, along with a letter. Tuffy exits Nisha’s room and delivers the letter to Rajesh instead. Rajesh reads the letter and realizes that Prem and Nisha love each other. Subsequently, he confronts both Nisha and Prem and steps aside, asking the elders to let them marry. Nisha and Prem marry each other with the consent of their families.