The megastar reveals the styling in Deewar was a result of a mistake by the tailor.
Reflective of the tumultuous politics of the early 70s, the 1975 film directed by Yash Chopra established the 71-year-old actor as the 'angry young man' of Hindi cinema.
Amitabh Bachchan tweeted,"The knotted shirt and rope on shoulder in Deewar was an adjustment for an error in stitching .. shirt too long so knotted it .. !!" Deewar also starred Shashi Kapoor, Nirupa Roy, Parveen Babi and Neetu Singh. The film was a superhit.