The mega-budget film is releasing Wednesday on Diwali.
"Watching the first copy of Ra.One...Damn! realised yet again I have made a love story...a love story between me and my dreams, " the 45-year-old posted on micro-blogging site Twitter.
Shah Rukh is trying to reach out to the maximum number of people by aggressively promoting the superhero film in two and three-tier cities, apart from the metros.
He has even tied up with channels and brands to sell the superhero film's merchandise.
Made at a budget of over Rs.100 crore, "RA.One" is directed by Anubhav Sinha who also roped in Arjun Rampal and Kareena Kapoor for important roles.