Regional Transport Offices (RTOs) across the Mumbai Metropolitan Region have launched a crackdown on widespread irregularities surrounding the table testing of autorickshaw and taxi meters, following reports that fake stamps and fraudulent clearance processes are being used to fast-track meter recalibrations. Mumbai: As the Regional Transport Office (RTO) flying squads began checking Marathi proficiency among auto-rickshaw and taxi drivers across the state on Thursday, Assistant RTO Inspector.