Possible Clues:

• Wall scribblings
• The writing is on the wall and it can be cutting about endless drug taking at institute
• Defacements on public walls
• Writing on the wall
• The writing is on the wall and it can be cutting about endless drug taking locally at institute
• Scrawls on walls
• The writing on the wall
• The writing on the wall?
• Some wall art
• Wall scribbles