It was a move timed to perfection. When Union mines minister and president of the Biju Janata Dal (BJD), Naveen Patnaik, gave marching orders to his arch rival in the party, Bijay Mohapatra, he did it with the cold calculation of a seasoned politician. Mohapatra, who was the BJDs political affairs committee (pac) chairman, was expelled from the party and his ticket withdrawn on the last day for filing of nominations to the assembly elections. In one stroke, Patnaik decimated his bete noire and sent out a clear message to his party that he is the undisputed head of the BJD.