SIT asked Singh if Sunanda had discussed anything about Tharoor’s alleged affair with journalist Mehr Tarar.
The SIT has pointed out that more than 25 countries have made “tax crimes” a predicate offence.
The SIT has also taken into custody three persons hiding on the premises.
The court is also learnt to have sought extension for disposal of the case.
The Income Tax department is now mulling prosecution against 300 entities figuring in the list of 628 entries.
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Shah added that the SIT will also seek information from the public and would place advertisements in the newspapers in the next 2-3 days.
Attorney General Mukul Rohatgi had on Thursday submitted a list of 627 names having accounts in HSBC bank.
Shah, a retired Supreme Court judge, said investigation in these cases is not easy.
The report also recommends redefining “Beneficial Ownership”, which guides the ownership of trusts and corporate vehicles.
In November 2013, Kodnani was granted bail on medical ground after which the Gujarat High Court rejected her plea to extend it.
Police said both the girls, in their notes, have hinted at persistent and increasing instances of sexual harassment of girls in the region.
Official sources said that the SIT met in the morning and also took up the issues on which immediate actions can be taken by the government.
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Subhas Chandra Bose’s family urges Modi to constitute a Special Investigation Team to investigate his disappearance.