School authorities said some female students scaled the walls and sneaked into town at night with their boyfriends. Others were also accused of littering the dinning hall with food served them.
Headmaster of the school, Shaibu Wilberforce Adams however declined to make further comments.
But some of the students who spoke to Joy News say have been wrongly punished along with the few truant ones.
They are therefore pleading with authorities to revoke their suspension since final exams begin next week. They students are pleading with authorities to intervene.
Meanwhile, Joy News‘ regional correspondent, Hashmeen Mohammed, reported that some of the students who come from remote towns were stranded as they were unable to get vehicles to transport them to their various destinations.
Some even slept on the streets, Hashmeen reported.
NOBISCO is the second SHS to have suspended final year students for misconduct 24 hours after Kumasi Girls SHS suspended over 400 students after they were found guilty of similar offences.
KUGISS authorities took the action after checks revealed, the students sneaked out of campus during the Easter festivities.
Banned items such as mobile phones, assorted dresses and cooked food were also seized from the students, mostly boarders.
They will now have to write the final year exams from their homes.
The disciplinary action leaves just about half of the 1,130 final year students on campus.