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.

Portfolio manager Mayank Bansal exposes options trading fraud, prompting SEBI to ban U.S. firm and seize ₹4,843 crore. Interview insights.

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