Heart Touching Story Behind Letter Z On APSRTC And TSRTC Buses Number Plate|Andhra Pradesh|Telangana

Every RTC bus in telugu states Andhra Pradesh And Telangana has letter Z on their number plates.There is heart touching story behind the letter Z on number plates.What is the story behind letter Z?Why it is heart touching?Watch the video for full details and subscribe the channel for more updates.