After representing India at the 2011 AFC Asian Cup, Mondal saw out his contract with Mohun Bagan and was released by the club. On 17 August 2011 it was announced that Mondal had signed with newly rebranded Kolkata side, Prayag United, with them being based in Kolkata a main reason for him signing. Despite the club going through financial troubles, Mondal remained with the side, soon renamed to just United, till 2014. On 9 May 2014 it was announced Mondal had re-signed with East Bengal. While with East Bengal, Mondal also represented Mumbai City and Kerala Blasters in the Indian Super League.