Born in Redhill, Surrey,[3] He began his career at Combined Counties club Horley Town, leading their Youth side in both league and cup in the 2012–13 season, sometimes playing at centre-back.

[13] Nadesan made his Crawley debut on 13 August 2019, playing the first 60 minutes of a 3–2 EFL Cup win over Walsall, in which he scored and gained an assist.

[16] Nadesan scored Crawley's second goal of a 3–0 FA Cup third round win over Premier League side Leeds United on 10 January 2021.

[19] He made his debut on 8 August 2023 against Championship side Southampton, scoring the first goal in a 3–1 First Round EFL Cup victory.

[22] Due to his goal-scoring ability, Nadesan has been compared to England international and fellow former Fleetwood Town forward Jamie Vardy.