Shares in the flagship firm of troubled Indian conglomerate Adani rocketed as much as 25 percent Tuesday, clawing back some of its recent huge losses, after saying it would repay more than $1 billion in loans.
The group owned by tycoon Gautam Adani lost around $120 billion in value after claims of accounting fraud were levelled by short-seller US investment group Hindenburg Research on January 24.
The rise on Tuesday of Adani Enterprises and several other listed units of India's biggest conglomerate helped trim the total loss to around $112 billion, Bloomberg reported.
The slide has raised concerns about the group's ability to raise fresh financing to pay down its debts. It cancelled a share sale, and reportedly also a bond issue, last week.
But Adani said Monday it was repaying early loans worth $1.1 billion, in a move meant to reassure investors.
Adani Enterprises, the group's flagship firm, soared as much as 25 percent on Tuesday, with trading suspended three times on the way up.
They pared back some of the gains after transactions resumed, but remained 15 percent up in afternoon trade -- although still down by more than half since the start of the year.
Other group companies were mixed, with Adani Transmission rising five percent before falling and Adani Total Gas down five percent and trade suspended again.
"The markets are happy that they prepaid their a chunk of their borrowings. This is a refreshing sign of confidence," markets commentator Srinath Sridharan told AFP.
Traders said investors would be closely watching earnings announcements due this week from several Adani firms for clues on their financial health.
- 'Largest con' -
Hindenburg accused Adani of "brazen stock manipulation and accounting fraud scheme" in "the largest con in corporate history".
Adani artificially boosted the share prices of its units by funnelling money into the stocks through offshore tax havens, the document said.
The group benefited from what it called a "decades-long pattern" of government leniency, and that "investors, journalists, citizens and even politicians have been afraid to speak out for fear of reprisal".
The company has rejected the claims as a "maliciously mischievous" reputational attack.
The loan repayment announcement came as The Economic Times newspaper reported that Britain's Standard Chartered had joined Swiss banking giant Credit Suisse and Citigroup in the United States in halting the acceptance of Adani bonds as collateral for loans it advances to private banking clients.
Last week Gautam Adani, 60, insisted that the "fundamentals of our company are very strong, our balance sheet is healthy and assets robust".
"These allegations are baseless," he told India Today television on Friday.
His personal wealth has more than halved, seeing him fall from number three in the Forbes real-time list of the richest people in the world to 17th as of Tuesday, with a fortune of $63 billion, down from $127 billion.
The opposition says Adani's closeness with Prime Minister Narendra Modi, who is also from Gujarat state, allowed him to win contracts unfairly and to avoid proper oversight.
The publicity-shy school dropout saw his operations expand at breakneck speed, with Adani Enterprises shares soaring more than 1,000 percent over the past five years before the recent rout.
Analysts say the turmoil has hurt India's image just as it seeks to woo overseas investors away from China.
Commerce Minister Piyush Goyal on Saturday defended Indian regulators, saying they were "very competent".