Mr R.Chidambaram, principal scientific advisor to the Prime Minister, Dr Manmohan Singh, dodged questions on the safety of the Mullaperiyar dam on Monday even while vociferously defending the Koodankulam nuclear power project.

Mr Chidambaram, who visited the Amritanandamayi Ashram at Vallikkavu here, became restless when questioned whether emerging wireless technologies would be of any help in sending out an early warning in case the Mullaperiyar dam breaches.