Vijender Singh, an Olympic medallist, beat Zulpikar Maimaitiali on Saturday, winning the WBO Oriental Super Middleweight belt from him.
But he dedicated his win to the "India-China friendship", and said he wanted to give the belt back.
India and China have been feuding over a disputed border area since June.
The row erupted when India opposed China's attempt to extend a border road through a plateau known as Doklam in India and Donglang in China.
Mr Singh, 31, has been widely praised in India for his win in the much-anticipated fight in Mumbai.
