Bollywood superstar Salman Khan showed his lighter side with a funny and heartfelt birthday post for his brother-in-law, Atul Agnihotri.

On the occasion of Atul's special day, the 'Dabangg' actor took to Instagram to share a candid picture. The photo showed Atul fast asleep on his wife Alvira Khan's shoulder. However, it wasn't the picture but the caption that truly caught everyone's attention.

Salman wrote, "Happy birthday Atul my bil means brother in law. Thank u for taking care of my sister I love u man. Best husband n father now can u plz be u the man I knew, 1 day I vil be the Man U r. Wake up brother."