Mumbai - Investors dumped more Adani stock on Monday as India's opposition staged protests calling for a full inquiry into allegations of major accounting fraud at the country's biggest conglomerate.
The group owned by tycoon Gautam Adani has lost around $120 billion in value since the claims were leveled by short-seller US investment group Hindenburg Research on January 24.
Trading in Adani Total Gas, in which French oil giant TotalEnergies owns a 37.4-percent stake, and in Adani Power was again suspended after the stocks fell five percent.
Shares in flagship Adani Enterprises, which before the rout gained more than 1,000 percent in five years, were down 2.0 percent, having been off almost 10 percent in volatile early trade.
The slide has raised concerns about the group's ability to raise fresh financing -- it canceled a share sale last week and reportedly also a bond issue -- to pay down its debts. The main opposition Congress party, which has called for a "serious investigation" by the central bank and regulator, on Monday staged protests including in New Delhi and Mumbai.
The party says that Gautam Adani's close ties with Prime Minister Narendra Modi, who is also from Gujarat state, has won contracts unfairly and avoided proper oversight.
Commerce Minister Piyush Goyal said on Saturday that Indian regulators "are very competent and our financial markets are amongst the most respected and well-regulated markets in the world."
Finance Minister Nirmala Sitharaman on Sunday said that Adani had also won business in Indian states not run by Modi's governing Bharatiya Janata Party (BJP).
"Any project under Prime Minister Modi goes through the open tender process (of) global tendering," Sitharaman told broadcaster Times Now.
The company has rejected the claims made by Hindenburg and last week Adani, 60, insisted that the "fundamentals of our company are very strong, our balance sheet is healthy and assets robust".
His personal wealth has more than halved, seeing him fall from number three in the Forbes real-time rich list to 22nd as of Monday with a fortune of $58.5 billion, down from $127.0 billion.
India's securities regulator SEBI said Saturday that it was "committed to market integrity" and without naming Adani said it always properly examines all "specific entity-related matters".