Bulls whack bears: Sensex ends flat at 13,431

 Mahindra Gesco topped the value chart with a turnover of Rs 256.30 crore followed by Tech Mahindra (Rs 135.30 crore), Indiabulls (Rs 99.60 crore), Reliance (Rs 99.55 crore) and Hindustan Zinc (Rs 87.70 crore).

 Deccan Aviation led the volume chart with trades of around 39 lakh shares followed by DCB (35.25 lakh), IL&FS Investsmart (34.65 lakh), Balrampur Chini (33 lakh) and Hanung Toys (32.90 lakh).