Salman, 49, who helps a deaf and mute girl reach her home in Pakistan in the film, says love for children is beyond boundaries.
"Would love and respect if the leaders of Indo-Pak see Bajrangi Bhaijaan because love for children is above all boundaries @narendramodi #nawazsharif," Salman posted on Twitter.
In the past, Salman attended Modi's swearing-in ceremony as the Prime Minister and also supported his pet project Swachh Bharat Abhiyan.
Directed by Kabir Khan, the film releases tomorrow.