He won a gold medal in the 200m Individual Medley and a silver in the 50m Butterfly category at the World Series 2019 in Brazil.

Mukundan, who has undergone 17 major surgeries since birth, took up swimming as part of acqua therapy to strengthen his legs and have a normal life. In an exclusive interview with ANI, the player said, "Once I got into the water, I felt like a fish. I started swimming a lot and tapping the hands in the water. I think that is how I started swimming. Kids usually take 15-20 days to learn but I learned in 10 days so that motivated me and got me into water sport."