The probe agency found irregularities in loans amounting Rs 3,642 crore sanctioned by Yes Bank to the travel firm.
They added that Vadra was expected to join the probe again on Friday.
Vadra is expected to be questioned again on either Friday or Saturday.
Assange said he would leave the Ecuadorian embassy in London at noon local time "to accept arrest by British police as there is no meaningful prospect of further appeal."
The meetings with the chief ministers will be held on Saturday, an official said.
Modi wanted in India for an alleged Rs 13,500 crore Punjab National Bank fraud arrived in London earlier this year on an Indian passport.
This is because no prosecution complaint has been filed in any of these cases under the Black Money Act.
A day after an FIR was filed against 35 persons on board US ship 'M V Seaman Guard Ohio,' detained for straying into Indian waters carrying weapons and ammunition, a multi-agency investigation, including officials from Research and Analysis Wing and Intelligence Bureau, has begun, sources said on Tuesday.
Not only is your privacy stripped stark naked, says Mitali Saran, the system itself is illegal and vulnerable.
The Enforcement Directorate (ED) on Wednesday issued fresh summons against Goa-based miner Radha Timblo, whose name figured in the black money list submitted by the government in the Supreme Court, and five officials of her company in connection with a money laundering probe against her firm.
"Mera Bharat mahaan, meri madam mahaan, sab madam ne hi kiya hai," Ansari's mother Fauzia Ansari told EAM.
US authorities have foiled a plot to assassinate White House frontrunner Barack Obama, arresting two white supremacists planning a "killing spree", targeting over 100 Afro-Americans, including the Democrat who aspires to be the country's first African-American president.