Shashi Tharoor, who quit his ministerial post over alleged links to the IPL Kochi franchise, said in the Lok Sabha Tuesday that his "conscience is clear" and that he had asked Prime Minister Manmohan Singh to have the charges against him thoroughly probed.

"My conscience is clear. I have done nothing improper or unethical, least of all illegal," Tharoor said two days after he resigned as minister of state for external affairs.