Broadcasting firm Sun TV on Friday denied any involvement in the 2G scam and said allegations were being levelled to harm the reputation of the company and its promoters.

"We wish to inform that Sun TV Network and Kalanithi Maran do not have any relationship whatsoever to any of these happenings," Sun TV said in a filing to the Bombay Stock Exchange

Shares of Sun TV Network tumbled 27.9 per cent on Thursday after reports said Maran family-owned Sun TV Network was a beneficiary of payoffs by an overseas telecom firm. The CBI has also started a "preliminary investigation" against Dayanidhi Maran.

The stock suffered a loss of 31.08 per cent during intra-day trade in the previous session, hitting a 52-week low of Rs 260.10.

However, shares of Sun TV Network on Friday bounced back surging by 13.85 per cent in morning trade on the bourses.

As per the lawsuit, after Aircel was taken over by Malaysia''s Maxis Communications, Sun TV received substantial investment from Maxis Group (Aircel) which took 20 per cent equity in DTH services firm Sun Direct.

Meanwhile, Maran has said he did not favour any company in granting UASL licences while serving as the telecom minister during the period 2004-07, even as political parties BJP and AIADMK called for his resignation on the issue.

Sun TV Networks said the allegations made against it "seem to be done with intent to damage and malign the reputation of the company and its promoters".

"We categorically deny the allegation of our usage of 323 lines of BSNL , said to have been routed through the residence of Dayanidhi Maran," it addded.

The company clarified that Dayanidhi Maran does not own any shares either in Sun TV Network or in Sun Direct TV.

It said Sun TV neither has any holding in Sun Direct nor does it have any relation with Maxis (which has a 20 per cent stake in Sun Direct).

The company said Sun TV only provides channels to Sun Direct's DTH (direct to home) platform.

"We also wish to state that Sun TV Network does not have shareholding in Sun Direct TV or vice versa," it added.