Downplaying the Opposition's demand for resignation of Telecom Minister A Raja over the alleged spectrum allocation scam, Congress on Monday said there was no "credible evidence" to support the charges.
"These are in nature of allegations.... There is nothing in the realm of proof or credible evidence," party spokesman Abhishek Singhvi told reporters at the AICC briefing here.
Singhvi also dismissed charges that the government was shielding Raja saying there is "no question of defending somebody, who is not an accused".
He parried a question on whether the DMK should ask Raja to resign saying, "I am a spokesperson of Congress and Raja does not belong to Congress."
The Congress asked the Opposition to "look within" before levelling allegation against the government on the controversy.
"It is ironical. Those who are holding Parliament to ransom (on 2G spectrum issue) are precisely those who in 1999, allowed the telecom operators to migrate from licence fee to revenue sharing arrangement. Before they start levelling allegations against the UPA, they should look within," another party spokesman Manish Tewari told reporters.
At the AICC briefing, Singhvi accused BJP of practising "double standards and hypocrisy".
He alleged that the principal opposition was setting different standards for "others in Delhi and for themselves in Karnataka" and referred to the alleged involvement of half a dozen ministers of BJP government of Karnataka in "serious" and "criminal" cases.