After an impressive season with ONGC, Sali was roped in by Mohun Bagan A.C.. He made his debut on 22 September 2013 against Bengaluru F.C. at the Bangalore Football Stadium in which he earned a yellow card in the 39th minute as Mohun Bagan drew the match 1-1. He was adjudged as the Man Of The Match in Mohun Bagan's away match against Churchill Brothers in Goa.
Wahid Sali is a versatile defender who can play as a right back or center back. He started as a 7′s footballer in Kerala and is regarded as one of the best defenders in I-League presently. He believes that a player should always look for ways to improve his game and his hardworking nature on and off the pitch is the reason behind his success.