The Congress will hold protests across the country against the questioning of its chief Sonia Gandhi by the Enforcement Directorate on Thursday, the opposition party said while slamming the agency's action against its top leadership as "political vendetta".

The Congress president is set to appear before the ED on Thursday in a money-laundering case related to the National Herald-AJL case and top Congress leaders will converge at the AICC headquarters for the protests. Similar protests were held when her son and former party president Rahul Gandhi was quizzed by the agency in June in the case. Sources said party leaders including MPs will march towards the Enforcement Directorate office and the Delhi Congress will stage a protest march outside Raj Bhawan.