Ahmedabad: Pitching himself firmly as BJP’s prime ministerial candidate even before being formally anointed, Narendra Modi on Thursday launched a blistering attack on Prime Minister Manmohan Singh on national security and challenged him to a public debate on governance, saying the nation is “restless for change”.

He also slammed the Prime Minister for India’s “weak and feeble” response to provocations from Pakistan and China and attacked him over a variety of issues ranging from corruption to the Centre’s flagship food security bill.

Modi, who had on Wednesday said the nation would compare his speech with the Prime Minister’s on Independance day, repeatedly referred to President Pranab Mukherjee’s address to the nation last evening to flag concerns about national security.

“The President says patience has limits. What is the limit, where is the border line? It has to be decided by the government in Delhi. How long will we be patient?

“The question is not of Pakistan alone. Today, national security is under threat. The Chinese intrude into our land and we keep mum. When Italian soldiers come and kill our fishermen, when Pakistanis behead our soldiers, we get concerned,” Modi said in his Independence Day address at a college in Bhuj.