In October 2008, Biseswar was called up to the Netherlands U21 squad for the first time, but was not used. It wasn’t until on 11 August 2009 when he made his Netherlands U21 debut, starting the whole game, in a 0–0 draw against England U21. Biseswar then scored his first Netherlands U21 goal on 4 September 2009, in a 2–0 win over Finland U21. On 3 March 2010, he scored twice, in a 3–2 win over Poland U21. Biseswar went on to make nine appearances and scoring three times for the Netherlands U21 side. Despite this, he reflected about his time, playing for the Netherlands youth team, quoting: "I still think it is an honor to play for the highest youth team of the KNVB."