Recently, Shah Rukh Khan shot for a wall-paint brand in Bengali which ushers in one of the biggest festivals of eastern India, Durga Puja. Although he has the swagger, the Bengali mouthed by the actor might put you off. But we have to commend the actor for at least trying. Now, he will soon be seen promoting West Bengal in a big way since he is the brand ambassador of the state. Shah Rukh Khan is set to shoot an ad film in October to promote West Bengal?s tourism potential, a minister said on Wednesday.