The stock markets started the week on a positive note on Monday, rising ahead of major global events including the U.S. Federal Reserve's rate decision, the meeting between U.S. President Donald Trump and Chinese President Xi Jinping, and quarterly results from the "Magnificent 7" technology giants.

The Nifty 50 index opened at 25,843.20, up 48.05 points or 0.19 per cent, while the BSE Sensex began the day at 84,297.39, gaining 85.51 points or 0.10 per cent.