Gazi group skipper Mahmudullah Riyad has been fined Taka 20,000 for breach of Level 2 offence of the BCB code of conduct during their game against Prime Bank in Mirpur yesterday in the Super League stage of the Bangabandhu Dhaka Premier Division T20 League.   Mahmudullah displayed dissatisfaction over the umpire's decision after his team was denied a caught-behind appeal.