Many storylines center on specific wedding traditions, such as Joota Chupai (hiding the groom's shoes), where the and her friends extort money from the , serving as a primary setting for romantic banter. The Surrogate Wife:

For decades, filmmakers and novelists have danced around this premise: a man entangled in a romantic or physical relationship with his wife’s younger sister, often leading to a catastrophic emotional swap. But why does this storyline persist? Why do audiences, from rural villages to metropolitan multiplexes, remain captivated by the "Sali Biwi Adla" dynamic?

The protagonist often finds themselves comparing the two sisters—the Biwi’s stability versus the Sali’s vibrancy. This comparison drives the internal conflict of the romantic arc.