Patna: There has been a big political stir in Bihar. Janata Dal United’s national spokesperson KC Tyagi has resigned from his post. The party has just issued a press release stating that KC Tyagi has resigned from the post of party spokesperson due to personal reasons. JDU has also announced a new national spokesperson after KC Tyagi’s resignation. Rajiv Ranjan Prasad has now been declared the national spokesperson of JDU in place of KC Tyagi.