 Kumar was one of the main judges in the May 2008, singing-competition TV show "K for Kishore", where singers tried to recreate the atmosphere of his father's songs.He was the main judge of the Zee Bangla singing competition "Sa Re Ga Ma Pa Mr" (Miss Universe 2010).Kumar sang songs for "Raju Chacha", "Apna Sapna Money Money" (2006), "Kandahar" (2010), "Dulha Mil Gaya", "Himmatwala" (2013).