Raipur (Chhattisgarh) [India], December 18 (ANI): After filing his nomination for the post of Speaker in the newly-elected legislative assembly of Chhattisgarh, former CM Raman Singh resigned from the post of National Vice President of the Bhartiya Janata Party on Sunday. “At present, I am discharging the post of National Vice President of the Bharatiya Janata Party but I have been nominated by the party for the post of Chhattisgarh Assembly Speaker. Therefore, I respectfully submit my resignation from the National Vice President of the Bharatiya Janata Party. Please accept my resignation,” Ra…