Hum Saath Saath Hain

In the past, Ramkishan Chaturvedi loses his first wife Lakshmi, and they have a one-year-old son, Vivek. Ramkishan then remarries Mamta, who becomes accepted and loved by Vivek as his stepmother. The family is soon expanded with three additional children: Prem, Sangeeta, and Vinod.

While trying to save his brothers Prem and Vinod from an accident, Vivek sustains an injury that leaves his right arm partially paralyzed. This incident leaves a lasting impact on Vivek's life and abilities.

Nineteen years later, Prem comes back from the US after completing his studies and training in the family business, preparing to take up his role within the family enterprise. Sangeeta is happily married with a daughter, Radhika, and Vinod is busy with his studies and future training.

Vivek, still undergoing treatment for his hand, continues to oversee and manage the family business. Meanwhile, the siblings participate in family celebrations, showing their love and respect for their parents during Ramkishan and Mamta's anniversary.

Adarsh's daughter Sadhna is attracted to Vivek, and after a proposal, Vivek marries her. This union strengthens family ties, and they settle into their new life, with Sadhna giving birth to a boy in the hospital.

Prem and Preeti, who have loved each other secretly since childhood, get engaged after their families learn about their relationship. Their engagement is celebrated as a significant family event.

Vinod secretly falls in love with Sapna, the daughter of Ramkishan's former neighbor, causing some family tensions as these relationships are hidden from the elders.

During a family outing and Vivek and Sadhna's honeymoon, Prem and Preeti learn about Vinod's love for Sapna. The families are informed, and Vinod and Sapna get engaged as well.

Ramkishan appoints Vivek as the managing director of the family business, which causes Mamta's paranoia over potential family divisions. She questions whether the business should be equally divided among all children, leading to familial tensions.

Due to internal conflicts, Anand and Sangeeta decide to move to Bangalore for better business opportunities. Mamta's fears grow, but eventually, reconciliations begin as the family gears towards unity.

Vivek temporarily steps down from the family business and moves back to Rampur with Sadhna to oversee a new factory. Later, he is convinced to return as the head of the family business after family reconciliation.

Sadhna delivers a baby boy, and slowly, Mamta and Vivek reconcile, fostering family unity. The siblings marry their respective partners—Prem and Preeti, Vinod and Sapna—strengthening family bonds.

Vivek's arm heals completely, allowing him to resume his role as the managing director. The family celebrates their unity and happiness, with all the members living harmoniously.