Shah Rukh Khan, the adored “King Khan” of Bollywood, is back on the big screen with a bang in his most recent film, “Jawan.” Fans eagerly rushed to theatres even for early morning showings of the movie, which was directed by Atlee and also features Nayanthara. Shah Rukh Khan morphs into a harsh, rugged, and gritty character in “Jawan,” giving …