He also announced Rs one lakh each for the seriously injured, a spokesman in the Prime Minister's Office said.
Dr Singh will be travelling to Mumbai at 5.30 pm to personally take stock of the situation, sources said.
He is expected to visit the blast sites and hospitals to meet
the injured.
In view of his visit, a meeting of the Council of Ministers to be convened on Thursday evening has been put off, sources said.
The prime minister had on Wednesday night strongly condemned the serial bomb blasts in Mumbai and appealed to the people of the megapolis to remain calm and show a united front.
The Prime Minister, who was monitoring the developments related to the explosions, had spoken to Home Minister P Chidambaram as also Maharashtra Chief Minister Prithviraj Chavan.
