At the time Kailash Khanna knocks at his house, Dhaniram is shown preparing himself to drink a glass of milk (he never gets to drink that milk, and it is the milk in that glass, which gets spilt later, perhaps by a cat, on which Kaalia's footprints are later imprinted). He opens the door, and feeling ingratiated at having such an honourable guest, offers a glass of sherbet to Kailash. During their talks, Kailash peeps out of the window and sees Badrinath (in fact Badri Prasad's lookalike) coming towards the door. Kailash does not want to be seen with Dhaniram, so he hides in a side room. Badri Prasad's lookalike is received by Dhaniram, through an already open door (he had never closed the door after Kailash had entered). Without saying anything, the newcomer stabs him in the abdomen quietly, switches off the lights and goes away, without closing the door behind him. Kailash sees all this through the side room. Later, he also escapes from the house, without closing the door. This leaves the crime scene with two contrasting situations – a switched off light and an open door. This contrasting situation was never explained satisfactorily by the prosecution. The best it could say was that both the door was open and lights were on when Kaalia came in via the pipe. Kaalia murdered Dhaniram and then switched off the lights. But Kailash quite rightly points out, that if Kaalia had indeed switched off the lights, the switch board should be smeared with blood (as Kaalia's hands were covered with blood when he was caught). No such blood was found on the switch board. This allowed Kailash to make a deep dent in the story of the prosecution. The persons attending the court are shown admiring Kailash's reasoning. Weaknesses in Defence reasoning The defence represented by Kailash Khanna too has several fatal weaknesses, although these were never brought to the notice of the court by the prosecution side. Here are some: Kaalia is shown being caught by Subinspector Das at 11.55 pm. The time is noted by Das by his own wrist watch. In India, generally a murder case is committed to trial months or even years after the murder. During the trial, Kailash proves that Das's watch is slow by 13 minutes. He asks Das the time. Das consults the very same wrist watch he was wearing at