Rajendar started off in the Kollywood industry making successful films which included him as an actor, playback singer, dancer and scriptwriter. He gained popularity through his one-of-a-kind style of acting. He normally serves as, but not limited to director, actor, songwriter, art director,production manager, playback singer. Since early 2008, Rajendar has been slowly working on the production of a film titled Oru Thalai Kadhal, a tale based on a village singer, in which he stars in the lead role. In 2011, he released a first look poster for the film and revealed that three heroines from Mumbai would star longside him. He provided an update in 2014, that the film was still under production and that it was sixty-five percent complete. He has also revealed that he is working on a script to launch his second son, Kuralarasan, as a lead actor.