NEW DELHI: BSE Smallcap index outperformed benchmark Sensex on Wednesday.The smallcap index closed the day with a tepid gain of 0.06 per cent at 17,536, whereas Sensex settled 0.44 per cent down at 35,388.Shares of Gammon Infrastructure Projects (up 19.81 per cent), Indiabulls Real Estate (up 12.20 per cent) and Apex Frozen Foods (up 10.64 per cent) surged over 10 per cent in the smallcap index.PTC India Financial Services (up 8.79 per cent), V Mart Retail (up 8.68 per cent), HEG (up 7.76 per cent), Prima Plastics (up 7.06 per cent), Premier Explosives (up 6.98 per cent), Edelweiss Financial Services (up 6.13 per cent), Motilal Oswal Financial Services (up 6.05 per cent) and MIRC Electronics (up 5.69 per cent) climbed over 5 per cent in the smallcap index.However, Morepen Laboratories (down 13.28 per cent), Syndicate Bank (down 12.30 per cent) and Clariant Chemicals (India) (down 10.63 per cent) cracked over 10 per cent.Indian equity benchmarks Nifty and Sensex extended the losses for the second session on Wednesday hit by political uncertainty in the state of Karnataka.Overall, 12 stocks remained in the green, while 19 in the red in the Sensex index.