Stepping up attack, Congress on Sunday alleged "direct interference" of PMO in the "sudden reversal" of NIA's stand in the 2008 Malegaon blast case and pressed for a Supreme Court-monitored probe into it while apprehending that Samjhauta Express blast case may also meet the same fate.

The opposition party asked Prime Minister Narendra Modi to uphold his Constitutional oath and discharge duties in line with that oath irrespective of his "ideology".

The NIA (National Investigation Agency) has become 'Namo Investigation Agency', senior Congress leader Anand Sharma said at a press conference in New Delhi while contending that the chargesheet appears to be aimed at "decimating and demolishing" the "meticulous" probe conducted by Maharashtra ATS led by late Hemant Karkare.

He demanded Supreme Court-monitored probe in the "sudden reversal" of the stance that has led to exoneration of six accused including Sadhvi Pragya and "dilution" of the case against the remaining accused on account of withdrawal of MCOCA and other offences.

He accused the government of "consistently" trying to save those who follow their ideology or belong to their associated outfits and are faced with charges.

"There was direct interference from the PMO...from his (PM's) office, I have said it earlier and everything is being proved, a dirty tricks department is being run. This government is centrally co-ordinated," Sharma said.

Elaborating, he said Col P S Purohit, an accused in the blast case, had allegedly written a letter to NSA Ajit Doval on January 6 and on January 8, it reached the Home Ministry and on January 9, the Home Ministry "started working" on it.

"...I have not seen such speed in movement of even files in the government," the Congress leader said.

"Our demand is clear. We insist the Prime Minister that his office, when he takes oath, he doesn't belong to a particular party, ideology, but the Prime Minister of India and should discharge duties in line with the oath," he said.

While pressing for Supreme Court-monitored probe, Sharma said the apex court should take "seize" all the papers relating the case, relating the probe, confessional statements, charge sheet and the correspondence among government, NIA, attorney general, NIA and Home Ministry, among Home Ministry, Home secretary and PMO.

"There is rule of law in the country and law doesn't discriminate. If this permission is given, like I said, then we ourselves are weakening India's case against terrorism.

Because, dropping MACOCA means, the recorded statements which courts accept as evidences, will be useless now," he said.

"The developments have raised question mark on the integrity of India and its commitment to fight the forces of terror, having taken this position that India is a victim of organised terrorism, the targeted victim over decades, India is determined to fight terrorism, we condemn terrorism in all its forms and manifestation," the former minister said.

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