Manmohan Singh to be Congress' PM candidate: Sonia

New Delhi, Mar 24 : Making it clear in unmistakable terms, Congress President Sonia Gandhi today said Manmohan Singh is the party's Prime Ministerial candidate and ducked questions whether her party would do business with the Third Front in the post-poll scenario.

In significant comments at the Congress manifesto release, she indicated that Rahul Gandhi could assume"leadership" when she said"wait and see. There may be a vacancy".

She was asked whether her son had any chance of leading the party if not the government in the near future.

On his part, the Prime Minister made a stinging attack on BJP's PM candidate L K Advani for his oft-repeated criticism that he was a"weak" Prime Minister.

" Whether I was weak or strong Prime Minister, the actions of our government will speak volumes.....But when I look at the record of Advani, all I can discover is the prominent role in destruction of Babri Masjid. What else he had done afterwards as a contribution to the national welfare?", he said.

Asked whether Rahul could become the Prime Minister, Gandhi, who was flanked by Singh and another senior party leader Pranab Mukherjee, took out the manifesto and pointed to Singh's image on its cover and asked" Have you not seen this?"