Sarath Kumar, popularly known by his stage name Appani Sarath, was born on April 15, 1992, in Thiruvananthapuram, Kerala, India. He came into the limelight after portraying the character of Appani Ravi in "Angamaly Diaries," directed by Lijo Jose Pellissery, which gained him instant popularity. He also appears in the famous "Jimikki Kammal" song from the movie "Velipadinte Pusthakam."

He became famous for his involvement in left-wing politics and Shastra Sahitya Pareekshath's street dramas, and later made his mark in the art and culture scene by performing various street plays in Kerala through the street drama group. The play "Cyclist," performed at Kaladi Sri Shankaracharya Sanskrit University, became a hit and was later performed at many venues in Kerala. After that, he joined the same university for his post-graduation in drama. On this occasion, he acted in many plays and directed in his style, taking inspiration from Narendra Prasad's play "Friday." During his PG studies, he participated in a film audition held in college as one of the groups and was selected. That was the great movie "Angamaly Diaries," where he started his film career from drama, as Appani Ravi in "Angamaly Diaries."

Sarath Appani founded a theatre group studio called The Local Bundle, which is a production stack based in Kochi.