Conflicting versions about procuring the call details of deceased liquor trader Prem Singh have cast a shadow on the role of police in the case.

The body of Singh, a named accused in the Saket Gupta murder case, was found near railway tracks in Kumhrar under Agamkuan police station on May 10.

In the first version, the police claimed that Singh’s cellphone call history had been procured. The second says some records in the cops’ possession are “shocking”, while further probe is needed.

Yet another version says the police are still trying to procure the call details. No police officer wanted to come on record about the exact status of this part of the investigation.

Sources said the sluggish pace of police investigations into the Singh case triggers doubts, as the same cannot be said about the Gupta case. A source argued: “The Gupta case probe had lucky leads for the police. First, two assailants were accidentally nabbed and then Pramod Yadav surrendered on Tuesday.”

The police have been much more prompt in securing the call details from service providers while probing low-profile cases.

On May 14, Mohammed Mukram, a Class IX student of a city school, was arrested for plotting his own kidnapping with a friend. Within three days of the boy’s disappearance, the police traced the teenager through mobile tower locations and details of ransom calls made from Fatuha.

“The entire call details have not yet been procured. Whatever has been procured cannot be disclosed as it contains names of influential people,” a police officer told The Telegraph.

Another officer said Singh’s call details were being procured and nothing official could be said on that.

Sources said smaller cases, in which big names were not involved, were easy for the police to investigate.