India also won two silver and a bronze today in other weight categories.
Mangal thrashed Mostafa Yaghoubizeleti of Iran 8-0 in the final of the 50kg freestyle category, while in the 120kg freestyle, Surjeet won bronze by flooring China's Xinmen Du 10-2 at the Saphan Hin Indoor Sports Complex.
Mamta Rani (48kg) and Manisha Mahadev Divekar (72kg) had to settle for silver each after losing in the finals of their respective weight categories of the female division.
Mamata lost to Yuka Yago of Japan 0-8 in a one-sided affair, while Manisha (72kg) too did not pose any challenge to China's Kunming Wang and went down tamely 0-5.
In the competition so far, Indians have bagged 12 medals - one gold, three silver and eight bronze.