"My son Siddharth and nephew Soumil are releasing their first soundtrack as music directors.. need your blessings and love, " Mahadevan posted on micro-blogging site Twitter.
To which Ehsaan Noorani added: "Off for the music release of Shanka's son Siddharth's first Marathi film soundtrack."
Siddhartha, 18, is a student at National College.