However, his life takes a devastating turn upon returning from his hometown, bearing tragic news: Devaki's untimely passing.

A playboy who has deceived women in previous villages with false marriage promises, exploiting them emotionally and physically before abandoning them upon transfer.

Receiving new transfer order, and Madhanagopal frustrated by Kasthuri's refusal to intimacy before marriage, devises a deceitful plan.

He writes a love letter, asking Kasthuri to meet him secretly at the village temple, and manipulates Vembu into delivering it, hiding his true intentions.

Vembu, recognizing an image on the letter realizes that Madhanagopal was responsible for his sister Devaki's tragic fate – pregnancy, abandonment, and eventual suicide.

Intent on abandoning Kasthuri, Madhanagopal instructs her to walk ahead while he slips away to catch the midnight train to his new village job.

Kasthuri saves Madhanagopal using her thaali to constrict the wound, stemming the venom's flow and buying time for medical treatment.

Upon recovery, a transformed Madhanagopal returns to the village temple, pouring out his regrets and vowing to remarry Kasthuri, now with genuine intentions.