"The people have rejected the prime minister's speech as it is full of ambiguity and lacks specific information," B Chowdhury said while addressing a press conference at the National Press Club yesterday.

Addressing the press conference, Dr Kamal said the prime minister should have cited the name of the group, which she thinks was involved in the August 17 bomb blasts.

"After the August 17 countrywide bomb blasts, the people expected to hear from the government about the measures to check criminal activities in the country. But the prime minister's speech could not fulfil that expectation," said Dr Kamal.

The prime minister's speech has not only failed, but also panicked the countrymen, the BDB chief said, adding, "The contradictory statements regarding the August 17 bomb blasts made by the ministers of the government have confused them."

The two leaders said a national government could be framed within the framework of the constitution to tackle "crisis situation" that the country is facing now.

"We don't support unconstitutional means to change the government. Rather we welcome any change in the government under the framework of constitution," B Chowdhury said.

"Any efforts within the purview of the constitution can be accepted… even parliament members, if they want, can do it to overcome the alarming situation threatening the national security and safety to public life and property," said Dr Kamal.

Dr Kamal said the national security has come under threat as the government has failed to take effective measures regarding the bomb and grenade attacks across the country during last 20 months.

The Oikya Mancha convenor said the "failure" of the government to run the country and their irresponsibility have damaged the image of the country.

The two leaders questioned why the investigation reports of the previous bomb and grenade attacks have not been presented before parliament or made available to the public.

They also demanded the government's explanation regarding the price hike of essentials, increase of fuel price and its "total failure" to enhance power production in last four years.

They wanted to know why the government failed to free educational institutions from terrorism and take action against the killers of Rajshahi University Prof Yunus and BUET student Sabekun Nahar Sony.

Asked about their plan to approach the highest judiciary, Dr Kamal hinted that they might file petition in the Supreme Court seeking the reports of the investigations into the bomb and the grenade attacks.

Referring to non-functioning of the Anti-Corruption Commission, Dr Kamal said, "It seems the solution has turned out to be more problematic than corruption itself."