Here is a deep dive into why this episode became an "exclusive" fan favorite and its place in the series' history. The Plot: A Family Outing with a Twist
We learn that Nair has recently come into a significant sum of money (implied to be from a shady land deal). Velamma demands control of it. When Nair refuses, calling her a "vishakanya" (poison maiden), Velamma smiles. She has a backup plan. velamma episode 4 the picnic exclusive