Haricharan comes from a Palakkad Iyer family. His grandfather P.S. Ganapathy was an organiser of Mic-less Carnatic concerts in the 60's under the name "Aalapanaa" and his grandmother Smt. Alamelu ganapathy is a national awardee in Mathematics and in the education business for more than 35 years. His father G. Seshadri is a 'B' grade artist through AIR and a bank employee and his mother Latha, a librarian in P. S. Senior Secondary School. He started learning Carnatic music at an early age of seven under Smt. Sethu Mahadevan and then privileged to learn from stalwarts like K. V. Narayanaswamy, T.M.Prabhavathi and P. S. Narayanaswamy. He recorded his first Tamil film song for the film Kaadhal, in Joshua Sridhar's music when he was 17, and went on to record three songs in his debut movie. His song "Unakkena Iruppen" was nominated for the National Film Awards in 2005 which became widely popular. He became more famous after his more recent song, "Thuli Thuli". Haricharan is one of the most used singer in Yuvan Shankar Raja's music. He has also sung Rotaract Change Anthem for RI Dist 3230. In 2012, Haricharan sang alongside Rajinikanth for the song "Maattram Ondrudhaan Maradhadhu" from soundtrack of Kochadaiiyaan, which was composed by A. R. Rahman and released in 2014. His recent projects are Krishna Gaadi Veera Prema Gaadha, Oopiri, Kalam and 24.