Dear Friend,
From your angle it seems you are going to issue show cause notice to a faculty who seems to be serving in an university, then, who is the authority to deal inappropriate, lethargic, unaccountable, lease mind in service, absenting from duties of faculty, and they have to take the action none else, First, inform the HOD of the particular branch to lodge proper complaint stating his/her absence, issue an order to remove his/her name from the attendance or put long absent or strike down his/her name by the appropriate authority issuing a letter stating the negligence of duty, secondly, after informing the faculty about his absence and striking his/her name a show cause be issued by the authority why such an appropriate action should not be taken against the faculty for causing damage to the students, thirdly, action for the punitive should be initiated.... meantime, a another solution of putting guest faculties should be initiated to save the students from becoming victims...You cannot take an action directly against a faculty without assessing his/her punitive action, however, in the case of private university such action can be initiated provided the authorities want to do so, also, they are govern by the UGC rules some are under the other State/Central education/university rules... painful but it is true ... (absconding is the right spelling) ....