Star discus thrower Krishna Poonia finished a disappointing fourth, while another medal prospect and reigning Asian Games gold medallist Preeja Shreedharan also was fourth in women's 10,000m on a day that saw intermittent rain, affecting the performance of athletes at Shiv Chhatrapati Stadium at Balewadi here.
Om Prakash, who was struggling all throughout the season, hurled the iron ball to a distance of 19.45 in his second attempt, his season's best though it was more than one meter outside his national record of 20.09m, to give India the first medal of the Championships.
This was Om Prakash's third medal in the Asian Championships. He had won a gold in 2009 in Guangzhou and bagged a bronze in 2011 in Kobe, Japan.
The Indian began well with a throw of 19.18m that put him second behind Ming-Huang after the opening round. The Indian was second after the fourth round behind Abdulmajeed but Ming-Huang produced an effort of 19.61m in the fifth round to seal the silver.
The opening day also saw organisational glitches with two scoreboards malfunctioning and results of the women's discus throw coming out more than half an hour after the event finished.