Players have to be alert all through the time till game becomes over. All the positions of players in this game (such as goal keeper, right backs, centre forwards and left backs) become very important. Some of the Indian heroes of golden era hockey were Dhyan Chand. Ajit Pal . Dhanraj Pillay. Ashok Kumar, Udham Singh, Baboo Nimal, Balbir Singh Sr., Mohammed Shahid. Gagan Ajit Singh, Leslie Claudius, etc. They were real heroes who led India towards a huge success in the field of hockey. Dhyan Chand was a brilliant hockey player who is still called as the wizard of hockey. India became the world champion first time in hockey in 1928 and won the Gold Medal at Amsterdam Olympics. After that year, India had continued maintaining its world championship in hockey till it lost to win in the Rome Olympics. Later, it got seventh place in Montreal Olympics, regained Gold Medal in Moscow Olympics (1980); however, again lost a Gold Medal in 1984. Hockey is an outdoor game played by two teams having eleven players in each.