The Bombay Stock Exchange benchmark Sensex climbed nearly 188 points in early trade today on heavy capital inflows by foreign funds and firm Asian markets. The 30-share index rose by 187.90 points, or 0.91 per cent, to 20,653.64 points with all sectoral indices trading in the positive zone. The wide-based National Stock Exchange index Nifty regained 6,200 level rising by 49.70 points to 6,210.20.