Bollywood superstar Salman Khan has shared a photograph where he is seen expressing his 'unconditional' love towards his pet dog.

The 50-year-old 'Sultan' star posted a picture of himself kissing his pet. He captioned it: "Unconditional".

'Sultan' is said to be based on the life of Sultan Ali Khan -- a wrestler who is faced with problems in his professional and personal lives. To get hold of the character in the best possible way, Salman gained weight and underwent rigorous training.

The film also stars Anushka Sharma as a wrestler.

Unconditional pic.twitter.com/yPsNn3BLfi

— Salman Khan (@BeingSalmanKhan) May 11, 2016

Produced by Aditya Chopra under the Yash Raj Films banner, 'Sultan' is slated to release on Eid this year.