Episode 100, titled "Saajna: 100 Reasons to Love" (a fan-made title reflecting the episode’s celebratory tone), revolved around the central theme of unity in diversity , a recurring motif in the show. The episode opened with Prem and Preeti’s families organizing a grand celebration to commemorate the couple’s enduring bond and the show’s 100th episode. However, the festivities take a dramatic turn when Preet’s traditional Punjabi father, Raja Singh (Kiran Kumar), clashes with Prem’s liberal, Mumbai-based parents over plans for an interfaith wedding.