Gowda, who turns 30 on Friday, threw the iron disc to a creditable 64.90m in his fourth attempt to win his first gold of the Asian Championships in his fifth appearance. He had won a silver each in the 2005 and 2011 editions.
With this win, Gowda has booked a berth for next month's World Championships in Moscow as each of the winner in the ongoing Asian meet automatically qualifies for the global mega event.
M R Poovamma won a silver in women's 400m race while unheralded Ratiram Saini bagged a bronze in men's 10,000m race as India swelled their medal tally to five (1 gold, 1 silver, three bronze).
After two days, China leads the medal tally with five gold, two silver and one bronze while India are in fourth position. Bahrain and Saudi Arabia are second and third respectively with two gold each.
Unlike yesterday, there was no rain today and spurred by the cheering sizable crowd at the Shiv Chhatrapati Stadium at Balewadi, the United States-based Gowda bought his win in a remarkable fashion after trailing to silver winner Mohammad Samimi of Iran (61.93m) till the third round.
Gowda changed shoes as his feet slipped in the second attempt in which he threw the disc into the side net before coming up with his winning throw in the fourth attempt, much to the wild celebration of the crowd which listened to the National Anthem being played for the first time in the Championships.
Gowda holds the national record of 66.28secs while his season's best is 65.82m.
Later Gowda, who had also won a silver in the 2010 Commonwealth Games in New Delhi, said that today's win was the best achievement of his career.
"Winning a silver in front of a huge crowd in the Commonwealth Games was one of my most memorable moments. But today's gold is right on top of everything," he said at the press conference.
Photos: 'Godmen' who courted controversy
Photos: Kajol with mother, sister Tanishaa at Dadar Durga Puja pandal
Kareena Kapoor Khan snapped with baby Taimur at mom Babita's house
Photos: Amruta Fadnavis at a fashion and lifestyle exhibition
Photos: Sushmita Sen stuns in a black dress with thigh-high slit