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.

US-based trading firm Jane Street has been banned from Indian markets after SEBI uncovered an alleged ‘intra-day index manipulation’ strategy that helped the firm earn ₹735 crore in a single trading day—raising serious concerns about algorithmic trading in

India has barred Jane Street from the country’s financial markets and said it would seize around $570 million that the U.S. securities firm made from allegedly fraudulent trades.