India’s securities regulator plans to boost its surveillance systems to better detect complex trading strategies after taking action against high-speed trading giant Jane Street Group for alleged market manipulation.

India's markets regulator is upgrading its surveillance to examine cases of derivatives manipulation, its chairman said on Monday, days after alleging U.S. trading firm Jane Street manipulated stock indexes.

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.