Singer-composer Shankar Mahadevan's son Siddharth has sung for Rakeysh Omprakash Mehra's "Bhaag Milkha Bhaag" and the proud father is all praise for the director.

"Proud moment as a father when I hear my son Siddharth Mahadevan singing for 'Bhaag Milkha Bhaag'. Thank you Rakeysh Mehra for the encouragement," tweeted Shankar.

Siddharth, 19, had earlier teamed up with cousin Soumil for Marathi film "Swapna Tuzha Aani Mazha" for five songs and the background score. The duo have also worked together for various jingles too.

Siddharth has even composed a song for Deepa Mehta's "Midnight's Children."