Former media tycoon Peter Mukerjea, arrested over his involvement in the Sheena Bora murder, was on Tuesday brought from Mumbai and then taken to the CBI headquarters in Delhi for further questioning, sources said.
Peter was arrested three months after the discovery of Sheena's remains in a forest near Mumbai.
Sources said Peter, who was from from Mumbai to Delhi early on Tuesday by a special team of the CBI, may undergo a lie detection test in the presence of forensic experts at the Central Forensic Science Laboratory.
Officials in the Central Bureau of Investigation (CBI) said Peter was brought to Delhi for further questioning under the supervision of senior officers including the probe agency's joint director, special director and director.
"Peter has been inconsistent throughout his questioning since his arrest. Considering a fair and fast probe, the agency took the step to get him to Delhi on the direction of senior CBI officials," said sources.
Sources said the probe agency has come across certain documents of which Peter had exclusive knowledge but he was not cooperating and was concealing facts pertaining to the murder and disposal of Sheena's body.
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However, the sources said, Peter has revealed some investments running into crores of rupees in fixed deposits and immovable properties in Britain and India in 2010-2011, but has not disclosed the source of the funds for the same.
The CBI is now probing a financial dispute as the most likely reason for the murder, in which Peter, mastermind and Sheena's mother Indrani Mukherjea, her former husband Sanjeev Khanna and driver Shyamvar Rai were involved.
The media tycoon's wife Indrani was arrested in August, days after the crime surfaced, for allegedly killing her 24-year-old daughter with the help of Khanna and Rai, who are also in jail.
A magistrate on Monday extended the CBI custody of Peter till November 26 on the agency's plea seeking additional remand.