Siddharth is a veteran actor of Marathi television, play and movie industry. He began his acting career at a young age and also earned several awards including the Best Actor Award at the Ravikiran Balnatya Spardha in 1996 at the age of 15. He proceeded to work in theatre and afterwards began performing in television shows such as Ek Shunya Baburao, Hasa Chakat Fu, Ghadlay Bighadlay, and Daar Ughad Na Gade. However, it was in 2006 that he gained wide recognition for his role as Sattu Supari in Rohit Shetty’s highly successful comedy movie Golmaal: Fun Unlmited (2006). In the same year, he appeared in popular Marathi movies such as Jatra and Aga Bai Arrecha and a Hollywood movie called Outsourced!
Known for his excellent comic timing, Siddarth grabbed his first lead role in 2007 with the movie Bakula Namdeo Ghotale. The following year he was highly praised for essaying the role of Dhanaji, a man who suffers from Kleptomania – a disorder that makes him steal things, in the movie De Dhakka. He has since then appeared in movies such as Me Shivajiraje Bhosale Boltoy, City of Gold, Kho-Kho, and Shasan.