Gautam, who claimed to have led the police to the terrace where Hemraj’s body lay after spotting bloodstains on the stairs, was called to the probe agency’s headquarters on Lodhi Road.

According to CBI officials, Gautam was questioned for a few hours to know more about the crime spot since investigators are now linking the chain of events at the time of murder on the basis of disclosures made by suspects Rajkumar and Krishna.

Sources said the CBI’s investigators are “not much aware” till date about the direction in which Hemraj’s body was found. They also quizzed Gautam about the position of hands, legs, and face, sources said.

The CBI sleuths had earlier questioned Gautam on June 4, three days after the agency took over the case from Noida police.

Gautam, according to initial reports had smelled foul when he went to the Talwar residence on May 16 to condole Arushi’s death. He apparently followed bloodstains on the stairs leading to the terrace and had the Sector 20 SHO break open the door to the terrace after the Talwar family said they had misplaced the keys.

Nupur and Rajesh Talwar had, however, reportedly told the CBI investigators during their interrogation that they had spotted Hemraj’s body, while Noida police on their part had claimed their officials found it first.