A possible concise summary is:
The transcript is from an episode of 'Crime Alert', a show that exposes crimes and alerts people to be safe. The episode is about Lallan, a milkman who is obsessed with Barkha, a married woman. He blackmails her with her obscene photos and forces her to meet him in different costumes. He also kidnaps her son Dhruv and kills his own wife Jamunia. Barkha's husband Praveen finds out and confronts Lallan. The police arrive and arrest Lallan for his crimes. The narrator advises the viewers to be alert and trust their family and friends.
Here are the key facts extracted from the text:
1. Lallan is a milkman who is obsessed with Barkha, a married woman who is his customer.
2. Lallan sexually assaults Barkha and blackmails her with photos of the incident.
3. Lallan also kidnaps Barkha's son Dhruv and forces her to meet him at his place.
4. Lallan kills his own wife Jamunia when she finds out about his affair and tries to expose him.
5. Barkha's husband Praveen returns from a trip and learns about Lallan's crimes from Barkha.
6. Praveen confronts Lallan and beats him up until the police arrive and arrest him.
7. Jamunia dies from her injuries and Barkha is traumatized by the ordeal.