The Congress today came down heavily on the then NDA government in 1998-99 alleging that it had violated contractual obligations in the telecom sector while issuing licenses to the service providers. Talking to reporters in New Delhi, party spokesman Manish Tiwari, said it had resulted in several thousands of crores of rupees to the exchequer. Quoting the CAG report of the relevant period, he questioned the NDA government's decision to reduce the licence fee at the fag end of its rule in April 2004.Tiwari said the BJP is divided on the demand for a JPC probe. He alleged the opposition is running away from the debate in Parliament because their acts during NDA rule would expose them. He said the opposition owes an explanation to the people.The Congress spokesman also welcomed the Supreme Court's observation that the investigations into telecom matters should go back to 2001.Reacting to the Congress charge that the opposition is stalling both the houses, the BJP reminded the Congress of its own acts of stalling the Parliamentary proceedings for 17 days on its demand for a JPC probe in the past. Party spokesman M Venkaiah Naidu said the Congress is feeling the heat of the opposition pressure to take action into the 2G spectrum investigations.Janata Dal (United), an ally of NDA, also said that the opposition's pressure is to make the government acti in the 2G spectrum scam. Party Chief, Sharad Yadav told reporters that efforts are being made to bring all the opposition parties together making corruption a nation-wide issue.