Chidambaram, a Harvard educated lawyer, was shifted to the Home Ministry from the Finance Ministry by the Prime Minister in the wake of the Mumbai terror attack last year which led to the resignation of Shivraj Patil from the post.
He has earned the reputation of being a good economic administrator capped by his image as a tough taskmaster during his short stint as the Home Minister.
Chidambaram has been focusing on reorganising the intelligence network, tightening the provisions in the anti-terror laws and amending the CISF Act.