Chennai: Tamil Nadu chief minister J Jayalalithaa has taken on Prime Minister manmohan Singh and Congress president Sonia Gandhi.
Jayalalithaa has sought explanation from the top UPA leadership on DMK leader A Raja`s charge in the 2G spectrum scam.
The AIADMK chief has also targeted home minister P Chidambaram.
Jayalalithaa`s salvo is in contrast to the initial bonhomie expressed by both sides after her massive victory in the state assembly elections.