Mamatha Sheroff from Bangalore, Karnataka has won 'India's Stock Market Hero' contest that aired on NDTV Profit for the 10am to 12pm band by selecting Siemens stock, which was up 0.94 per cent. NDTV Profit and Hero MotoCorp Ltd have launched the contest, which gives an opportunity to every stock market enthusiast to win Rs 50,000 every two hours and up to Rs 2 lakh every day for the next 2 months.