[2][3] Born in The Hague, Kishna joined Ajax in 2010 from ADO Den Haag at 15 years old, where he had been active in the youth ranks from the age of 9 laying the foundation for his professional career.

[4] He began the 2013–14 season playing for Ajax A1, the club's under-19 team, competing in the Nike A-Juniors Eredivisie and the UEFA Youth League.

On 3 January 2014 it was then announced that Kishna, Jaïro Riedewald and Riechedly Bazoer would join the first team on its training camp in Turkey during the Winter transfer window.

[5] After making his debut with the first team in the Antalya Cup, a friendly tournament, on 11 January 2014 against Turkish side Trabzonspor, head coach Frank de Boer announced that Kishna would not be returning to the under-19 selection after the Winter break.

He then made his professional debut on 20 February 2014 against Red Bull Salzburg, replacing Kolbeinn Sigþórsson in the 60th minute in the 0–3 home defeat.

[14] Kishna made his debut for the Netherlands national team in the youth ranks, appearing for the under-15 selection in an International friendly match against Turkey U-15 on 8 December 2009.