The key points from the document are: 1) Indian stock markets rose sharply on September 20, with the Sensex up 3.43% and Nifty up 3.66%, led by banks after the US Federal Reserve maintained its stimulus plan. 2) European and US stock markets were also up around 1-2% on the day. 3) Yes Bank, Kanani Industries, and Indian Bank saw gains over 12%, while Integra Garments lost over 100% on the day.