Describing the Congress allegations as ‘ridiculous and baseless’ that top BJP leaders conspired currency case in Parliament and Narco test of its top leaders, BJP on Saturday has sought Narco test of Prime Minister Manmohan Singh and SP leader Amar Singh on the issue."Congress allegations that Chief Minister Shivraj Singh Chouhan, state BJP chief Narendra Singh Tomar and senior minister Kailash Vijayvargiya planned the currency case, is basesless and ridiculous", BJP Vice-President Videndra Singh Sisodia said in a statement on Saturday. Reacting sharpely over Congress spokesman Manak Aggrawal's demand for Narco test of the top BJP leaders, Sisodia said, instead, narco tests should be conducted for Prime Minister and Anmar Singh.Addressing a press conference, Agrawal said that Chouhan, Tomar and Vijayvargiya planned the conspiracy and the currency collected in the state were flown by the official plane to Delhi on July 21.Countering the allegation, Sisodia charged that Ahmed Patel, political secretary to Congress president Sonia Gandhi and SP leader Amar Singh had bribed members to vote in favour of confidence vote, a CD of which has already been submitted to the Speaker Somnath Cahtterjee, who is probing the matter.