Cracks in the telecom joint venture Uninor became wider on Monday when the Norwegian partner Telenor issued a statement distancing itself from the Central Bureau of Investigation proceedings on Unitech Wireless.
Telenor said it invested in the operating company, Unitech Wireless, and not in its promoters.
"Telenor has zero tolerance for corruption. If any malpractice has occurred, those responsible must be brought to book," the company said.
On Saturday, the CBI had filed a chargesheet on Unitech managing director Sanjay Chandra, as a part of the ongoing 2G spectrum scam investigation.
Telenor claimed the CBI chargesheet names Sanjay Chandra as the managing director of Unitech and also names Unitech Wireless for actions when it was a fully-owned Unitech company.
"This was a period prior to Telenor group entering India. Unitech Wireless will argue its case in court, and we expect Chandra to do the same," Telenor said, in an attempt to clear its name from the corruption charges.
The 2G scam is one of the biggest scandals to hit the government, which saw high-profile arrests, including former telecom minister A Raja.
The discrepancies in telecom licence allocations by Raja have led the CBI to question all companies which received them in 2008.
"It is Telenor group's intention to fight for its rights and continue the operational progress that has been achieved in the Indian market," the group said.