Sajid Shah had written 'Hindustan Zindabad' on the outer wall of his home in Nara Amazi area of the province, Daily Express quoted police as saying.
He has subsequently been booked for treason, they said.
Some local people told him to erase the slogan from the wall as it hurt their national pride, the police said.
Some people took pictures of the wall on their smartphones and emailed them to senior police officials.
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