Skipper Harmanpreet Singh led admirably as the Indian men's hockey team mauled defending champions Japan 5-1 to reclaim the Asian Games gold, their fourth in the continental showpiece, after nine years and qualify for next year's Paris Olympics here on Friday.
The Indians, who had to be content with a bronze medal in the last edition in Jakarta, thus won their fourth Asian Games gold and first since the 2014 Incheon edition.
India's other gold medals came in 1966 and 1998, both times in Bangkok.
South Korea won the bronze medal after eking out a close 2-1 win over hosts China.
Harmanpreet (32nd, 59th minutes) scored a brace through penalty corners, Amit Rohidas (36th) also sounded the board from a set-piece, while Manpreet Singh (25th) and Abhishek (48th) found the net from field efforts to register the famous victory for India.
Seren Tanaka converted a penalty corner for Japan in the 51st minutes.
Harmanpreet, thus, finished the tournament as India's top scorer with 13 goals, one ahead of striker Mandeep Singh.
The Indians, who ended the tournament unbeaten, were by far the better side against Japan, whom they had defeated 4-2 in the pool stages.