Another senior party leader, H K Patil, will chair the panel for Kerala. The screening committee of the Congress for the eight-phased West Bengal Assembly polls starting March 27 will have Delhi leader J P Aggarwal as its chairman. The Assembly elections in Tamil Nadu, Puducherry and Kerala will be held in a single phase on April 6 and the counting of votes will be taken up on May 2. "Congress president has constituted the screening committee for the forthcoming Assembly elections in Tamil Nadu and Puducherry with immediate effect, with Digvijaya Singh as its chairman," a statement issued by the party said.