The CBI made the submission while telling the court that it has sought Interpol's help in seeking access to overseas bank accounts of the Mukerjeas even as it secured extension of of Peter's custody till November 30.
Seeking Peter's custody, CBI, which had claimed financial transaction as the motive behind Sheena's murder, said investments of crores of rupees were made by the Mukerjea couple and that "Indrani and Peter had formed various companies during 2006-07 and invested Rs 900 crore in them."
The court was informed that "CBI has written to Interpol seeking access to accounts of Mukerjeas including one in Sheena's name at HSBC Bank, Singapore."
CBI also told the court that a woman named Gayatri Ahuja, working in DBS Bank Singapore, helped Indrani open an account in HSBC Singapore.
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During investigations, Peter told CBI that accounts might have been opened in the name of Sheena Bora (by Indrani) in HSBC and other banks in Hongkong and Singapore.
The reports of Serious Fraud Investigation Office and Income Tax and documents of chartered accountants substantiate the above facts, the CBI said while seeking Peter's remand.
Singh also told the court that Indrani and Peter had informed the police that whereabouts of Sheena were not known but later they told police that they have found her.
The central agency had claimed that it has come across some important information and documents which are very crucial for probe relating to the case.
Peter, husband of prime accused Indrani Mukerjea, was arrested on November 19 and granted CBI custody till today, which was extended by four more days by Metropolitan Magistrate judge R V Adone.
Sheena (24), Indrani's daughter from an earlier marriage, was allegedly killed by her mother, her former husband Sanjeev Khanna and her former driver Shyamvar Rai in April 2012.