Indian benchmark indices the Sensex and the Nifty started February 9 trade a tad higher supported by gains in heavyweights such as Bajaj Finance, Reliance Industries, SBI, TCS, Titan, and Asian Paints. The market would continue to trade sideways in the near-term, with the Nifty moving within a broad range of 500-600 points. The level of "21,500 should act as a strong support zone.