"It is not a question of Sushma ji resigning, PM Modi ji should sack Sushma Swaraj ji from the Govt," Gandhi said on the hashtag #ModiGate on Twitter.
Addressing media in Chhattisgarh, the Congress Vice President recalled Modi as saying that he was a protector and he was the person who will get back black money from outside.
"Mr Lalit Modi is a symbol of Black Money from outside. Now Mr Modi through Sushma Swaraj is protecting him. What is this?" he asked.
"Who is Sushma Swaraj. Sushma Swaraj is a minor minister and she means nothing in this government. There is only one man who is running this government and he is Narendra Modi and Narendra Modi should stop protecting Lalit Modi," the Congress Vice President insisted.
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Escalating its attack against the NDA, the AICC earlier charged the entire BJP and the government with "aiding and abetting" Lalit Modi with "tacit approval" of Modi and demanded explanation from him.
Addressing a press conference, Congress chief spokesman Randeep Surjewala posed nine questions to the Prime Minister to answer whether there was any quid pro quo in helping Modi, who has been accused salting away Rs 700 crores out of the country and was facing charges of money laundering, match-fixing and betting.