MUMBAI, Feb.2 (Xinhua)--Indian stocks opened higher Tuesday, with the key Sensex index up by 12.41 points. Sensex opened at 16,368.44 points,higher from the previous close of 16,356.03 points Monday. Sensex is the common name for the Bombay Stock Exchange Sensitive Index. It consists of the 30 largest and most actively traded stocks, representative of various sectors, on the Bombay Stock Exchange. 