The winner of Asian Champions Trophy held in China in September 2011, was

India
Japan
Pakistan
South Korea

The correct answer is (a) India.

India won the Asian Champions Trophy held in China in September 2011. They defeated Pakistan 4-2 in the final. India finished the tournament unbeaten, winning all of their matches. They scored 22 goals and conceded only 6 goals.

India’s victory was their first Asian Champions Trophy title since 2004. It was also their first major international title since winning the 2010 Commonwealth Games gold medal.

India’s victory was a major boost for the team ahead of the 2012 London Olympics. The team was led by Sardar Singh, who was named the Player of the Tournament.

India’s victory was also a major boost for Indian hockey, which had been struggling in recent years. The team had not won a major international title since the 2004 Asian Champions Trophy.

India’s victory was a major achievement for the team and for Indian hockey. It was a sign that the team was on the right track and that they could compete with the best teams in the world.

Here is a brief description of each option:

(a) India: India won the Asian Champions Trophy held in China in September 2011. They defeated Pakistan 4-2 in the final. India finished the tournament unbeaten, winning all of their matches. They scored 22 goals and conceded only 6 goals.

(b) Japan: Japan finished second in the Asian Champions Trophy held in China in September 2011. They lost to India 4-2 in the final. Japan finished the tournament with a record of five wins and one loss. They scored 20 goals and conceded only 10 goals.

(c) Pakistan: Pakistan finished third in the Asian Champions Trophy held in China in September 2011. They lost to India 4-2 in the final and to Japan 2-1 in the third place playoff. Pakistan finished the tournament with a record of four wins and two losses. They scored 18 goals and conceded 14 goals.

(d) South Korea: South Korea finished fourth in the Asian Champions Trophy held in China in September 2011. They lost to India 3-2 in the semi-finals and to Japan 2-1 in the third place playoff. South Korea finished the tournament with a record of three wins and three losses. They scored 16 goals and conceded 15 goals.