Since the murder of a seven-year-old student of Gurgaon's Ryan International School last month, several schools have forbidden bus drivers and conductors from using their washrooms and entering the premises. In order to bring up the issue of 'mental harassment' that they have been facing for the past month, staffers of nearly 48,000 school buses from across the state, under the School Bus Owners' Association (SOBO), will stage a Black Day protest on Thursday.

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