New Delhi (Agencies): Hit by massive collapse in its group stocks, Anil Ambani group on Thursday held 'corporate rivals' and a cartel of market manipulators responsible for creating panic among investors and demand immediate probe into the matter.

Seeking to alleviate concerns of its over 11 million investors, the group also said it has been victimized by the illegal bear cartel that destroyed market value of a staggering over Rs 3,00,000 crore for the infrastructure sector in past few weeks.

Naming the infrastructure sector as "the highest priority for the country," the group MD Gautam Doshi said in a conference call that ADAG has sought immediate investigation into the matter.

 "We have written to SEBI, the stock exchanges, and intelligence agencies to immediately investigate these concerted efforts to destabilise the capital markets, and create panic amongst investors," he said.

The comments came a day after the group stocks plunged by up to 19 per cent, causing a market value loss of over Rs 11,000 crore in a single day.

The group stocks, however, on Thursday bounced back, challenging the overall bearish sentiment in the broader market and surged by up to 11 per cent in early trade.

Reliance Infrastructure, which shed 25.14 per cent in Wednesday's session, shot up by 10.97 per cent on Thursday morning.

 Another major gainer from the Anil Ambani camp was Reliance Communications, which experienced a 7.22 per cent increase to an early peak of Rs 101.70, after hitting a record low of Rs 90.80 on Wednesday.

Shares of Reliance Broadcast Network also went up by 5.37 per cent, while Reliance Capital jumped by 10.51 per cent, Reliance MediaWorks by 9.31 per cent and Reliance Power by 5. 3 per cent on Wednesday.

Talking about the sharp plunge witnessed on Wednesday, Doshi said: "A series of completely false and baseless rumors against our Group have been circulated yesterday by our corporate rivals and an illegal bear cartel."

"The market regulatory authorities are equipped with the most advanced electronic surveillance systems, and we are confident this deliberate pattern of price hammering and manipulation will quickly be exposed," he added.

Doshi also said the group companies, Reliance Infra and RNRL, as well as their statutory auditors, have not received any notice from auditing regulator ICAI with regard to the consent settlement reached by the two companies with Sebi.

He however put forth the point saying the ICAI had "simply asked for copies of audited Balance Sheets, which are already in the public domain, and have been circulated to over 1.5 million shareholders."

"ICAI has also desired to know why Reliance Infra has chosen to implement a policy of rotation of statutory auditors," Doshi said.