New Delhi, Jan 17 (Agencies): The Delhi police was on Monday asked by a court to spell out the specific roles of various suspected Indian Mujahideen terrorists involved in plotting the September 2008 serial terror blasts here.

"There are two categories of accused. One set of accused took part in the conspiracy while others played their part in execution. I want the Delhi police to come out specifically about of the role of each of the accused who participated in hatching conspiracy," Additional Sessions Judge Santosh Snehi Mann said.

The court gave public prosecutor Rajiv Mohan two weeks to specify the role of various accused in hatching the conspiracy and posted the matter for further hearing on January 31.

ASJ Mann had earlier slated the matter for today to pass order on framing of charges against the 14 suspected Indian Mujahideen terrorists arrested so far in five cases  registered in connection with serial blasts of September 13, 2008.

Among the 14 accused, five men were arrested by Delhi police following an encounter at Batla House here on September 19, 2008.

Of the remaining, four were apprehended by Mumbai police, three by Uttar Pradesh police and one each by Hyderabad and Madhya Pradesh police.

Defence counsel and the prosecutor had already wrapped up their arguments on charges levelled against the accused under various provisions of different laws, including anti-terror law Unlawful Activities (Prevention) Act.

Meanwhile, the court refused to pass any order on pleas by accused Mohd Hakim, Shahzad and Salman, apprehending threat to their lives inside Tihar jail after the prison authorities assured it of their safety inside the jail.