Shobana to make a cameo in Mammootty’s CBI 5- The BrainMammootty will be next seen in the CBI series Sethurama Iyer with his crime thriller, CBI 5 – The Brain. As this much-anticipated movie gears up to release on 1 May, the producers have shared a captivating BTS video from the flick. Inscribed “When nagavalli met Sethurama Iyyer”, the clip shows actor Shobana finding Mammootty. []