Sunil Babu passed away on the night of January 5. image credit: Google

He passed away at 50 due to cardiac arrest. image credit: Google

Sunil was admitted to the hospital three days ago due to swelling in his leg. image credit: Google

Dulquer Salmaan worked with Sunil Babu on his blockbuster film Bangalore Days and Sita Ramam. image credit: Google

Sunil Babu worked as an art director and production designer in Malayalam, Telugu Tamil, and Hindi as well. image credit: Google

Some of his best works are films like Thupakki, Bheeshma Parvam, Maharshi, Oopiri,  Ghajini, Premam, Chota Mumbai, and more. image credit: Google

He also worked in Hindi for the biggest blockbusters like Singh Is King, MS Dhoni, Paa, Lakshya, Special 26, and more. image credit: Google

Dulquer Salmaan shared a pic of Sunil Babu on his Instagram handle and wrote "Heart hurts". image credit: Google

He shared a pic of Sunil and penned an emotional note as he bid goodbye. image credit: Google

The actor mentioned that he is heartbroken by the loss and offered condolences to his family and close ones. image credit: Google