"My charge against this government is that when so many agencies were interrogating him (Mallya), why was he not arrested, why was his passport not confiscated," Leader of Opposition Ghulam Nabi Azad said in Rajya Sabha.
Raising the matter during Zero Hour, Azad said everyone knew Mallya "could flee any day" and the investigating agencies should have seized his passport and taken steps to restrict his movement.
"My allegation is that this government is party to this criminal conspiracy of allowing him to escape and leave the country. In this criminal conspiracy, this Government should be made party and the Supreme Court should take note of this.
"Without the participation and without the active support of this government, he could not have left the country. That is my allegation," Azad said, adding that "one had escaped, the second Lalit Modi (Mallya) should not be allowed to escape".
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The Leader of the House further said the accounts were declared non-performing assets (NPA) on April 30, 2009 and these debts were restructured and more facilites extened in December 2010.
"In what circumstances were the loans given is an issue of investigation and the CBI is investigating," he said.
"How these accounts were running, what facilities were given, the dates tell their own story," Jaitley said, adding "when the loans were given, how they were given... introspection will be required."
taking steps to recover dues and attachment of properties, the Minister said he had a list of 22 cases filed in different parts of the country and added that some assets have also been attached.
He also said there was no order to stop Mallya from leaving the country.
"That day, there was no order of any agency to stop him (from leaving the country)," Jaitley said, adding Mallya had left the country before the banks moved the Supreme Court for seizure of his passport.
Mallya had left the country on March 2.
"I was giving an example that one had escaped, the second Lalit Modi (Mallya) should not be allowed to escape," Azad said.
The senior Congress leader also said that during his long political career, he has never recommended to any bank for advancing loan to any person.
Earlier, Naresh Agrawal (SP) said the matter of Mallya, a Rajya Sabha MP, should be referred to Ethics Committee.
Deputy Chairman P J Kurien said: "I agree with you. This is a matter to be taken up by the Ethics Committee".