New Delhi, Dec 14 : Bharatiya Janata Party (BJP) MPs walked out of the Rajya Sabha Monday, saying they were not satisfied with Home Minister P. Chidambaram's reply on the steps being taken to bring to book the perpetrators of the 1984 anti-Sikh riots

"The reply is not satisfactory," BJP member S. S. Ahluwalia said as he led the BJP MPs out of the house.

Chidambaram, in his reply to the five-hour long discussion on a calling attention motion on the riots, lamented the lack of action against the police officers who were responsible for maintaining law and order.

"Obviously, the situation is most unsatisfactory... I'm not satisfied, I am still trying to find a way of punishing those guilty of dereliction of duty. We have to find a way," the home minister said.

"Whatever we do, we have to do according to the law," he added.

Recalling Prime Minister Manmohan Singh's statement in parliament on Aug 11, 2005 in which he apologised to the Sikh community and the entire nation on the riots, Chidambaram said: "I have nothing more to add to it."

"I hope such black days never be repeated," he added.(IANS)