"Dear Sachin. My best wishes for the success of aSachin: A Billion Dreams'. God bless," Rajinikanth tweeted.
Directed by James Erskine, the film is slated for theatrical release on May 26.
The film, which features Sachin himself, captures the Little Master's cricket and personal life in substantial detail, which shedding light on some never heard aspects of his life.
Produced by 200 NotOut Productions, the movie has music by double Oscar-winning composer A.R Rahman.
The film's trailer was released last week and was well received.