Mahesh Babu has the best wishes for his father Superstar Krishna, whose birthday it's today. In a short but sweet tweet, the charming son has described his father in a touching manner.

"My real hero.. my mentor.. my idol.. my pillar of strength.. my everything. Proud to be your son. Happy birthday Nana, the forever evergreen superstar," the 'Bharat Ane Nenu' actor said.

The actor was recently very happy about his Oath in 'BAN' sounding much like Krishna's voice. "Many thought that it was digitally mastered. I myself felt that I am sounding like Nanna garu in the Oath video. I don't have to watch any of Nanna garu's movies to imitate him. His acting is always there in my subconscious. I have watched every movie of his. So, I might sometimes talk like him without my knowledge," the star said in an interview ahead of BAN's release.

My real hero.. my mentor.. my idol.. my pillar of strength.. my everything. Proud to be your son. Happy birthday Nana ????- the forever evergreen superstar. ??#HBDSuperStarKrishna ❤ pic.twitter.com/Ea7YKSHzx2

— Mahesh Babu (@urstrulyMahesh) May 31, 2018