SEBI has temporarily barred Jane Street from the Indian stock market and impounded ₹4,840 crore for alleged index manipulation, raising concerns about retail traders' vulnerabilities in derivatives trading.

Speaking with reporters over the interim order against the New York-based hedge fund manager, Tuhin Kanta Pandey said surveillance has been increased both by the regulator and also at the exchange level.

India's markets regulator has widened an investigation into alleged market manipulation by U.S. securities trading firm Jane Street to include other indexes and exchanges, a source familiar with the matter said.