India's Enron

The head of Indian outsourcing company Satyam Computer Services resigned on Wednesday, disclosing that profits had been falsely inflated for years and sending its shares plunging nearly 80 percent.

India's biggest corporate scandal in memory threatens future foreign investment flows into Asia's third-largest economy and casts a cloud over growth in its once-booming outsourcing sector.

The news sent Indian equity markets into a tailspin, with Bombay's main benchmark index tumbling 7.3 percent and the Indian rupee fell.

The New York Stock Exchange halted trading in Satyam's shares indefinitely, saying it wanted to review the news.

Ramalinga Raju, founder and chairman of India's fourth-largest software services exporter, said in a statement that Satyam's profits had been massively inflated over recent years. He added that no other board member was aware of the financial irregularities at the Satyam, which in Sanskrit means "truth."

"If a company's chairman himself says they built fictitious assets, who do you believe here? This has put a question mark on the entire corporate governance system in India," said R.K. Gupta, managing director at Taurus Asset Management in New Delhi. More