In India, the festival of Dussehra, which signifies the triumph of good over evil, was celebrated last Sunday. And on Monday precisely, the reverse was seen on the D-Street as the bear, which is a bad character on D-Street, butchered the bulls. As a result, Nifty tumbled 1.36 per cent to settle below the 11,800 mark. Stocks in news: HCL Technologies, Galaxy Surfactants, NTPC and Cosmo Films