Pune Regional Transport Office warns private passenger bus operators against charging fares above government-prescribed limits during the Diwali. Pune RTO has warned private bus operators against overcharging during Diwali. Passengers can report excess fares and other violations on WhatsApp at. The RTO has urged passengers to report instances of overcharging and other violations through its WhatsApp helpline at 8275330209. Complainants have been asked to provide their name, mobile phone.