[JPMorgan Chase, Jane Street under investigation, India tightens supervision of Wall Street institutions] September 9th, India is strengthening its scrutiny of Wall Street trading institutions. In the country's $5 trillion stock market, securities regulators have become increasingly active, even targeting well-known international institutions such as JPMorgan Chase. The Securities and Exchange Board of India (SEBI) recently accused JPMorgan Chase’s Mauritius unit of executing manipulative stock trading. Last year, SEBI also accused U.S. financial giant Jane Street of market manipulation, one of the most powerful actions it has taken against a foreign institution. Jane Street has denied the accusation. People familiar with the matter said that SEBI has sent signals internally that it will more proactively review the trading activities of domestic and foreign institutions to further protect retail investors. The people asked not to be identified because the matter is private. Since this year, other large international institutions such as Bank of America and investment giant Capital Group have also entered the field of vision of Indian regulatory authorities. This is in stark contrast to previous decades when foreign securities institutions were rarely punished in India. Today, Indian regulators are aligning themselves with the standards required by US and European regulators.