This project work under the heading of –clinical evaluation of ossicular status in chronic suppurative Otitis media both safe and unsafe variety and its management‘ was carried out in the department of otorhino laryngology, Calcutta National Medical College and Hospital, Calcutta during the period of August 2000 to July 2001. This study work comprises a total of 50 cases of chronic suppurative otitis media with central, attic and postero–superior perforations of tympanic membrane se;ected from the E.N.T. out patient Department of Calcutta National Medical College and Hospital. The cases selected for this project work are assessed meticulously and carefully, both clinically and by routine and special investigations. The cases were categorized according to site of perforation of tympanic membrane. Group A patients (25) were with central perforation, Group –B‘ (14patients) with attic perforation and with or without granulation tissue and cholestectoma and Group ‘C‘ (11 patients) with postero–superior marginal perforation. An observation was made to corelate the mucous membrane pathology of the middle ear cleft with the status of the ossicular chain. The observations and results were compared with the available literature on this subject. We faced some minor immediate post–operative complications like bleeding, pain, soft tissue swelling, fever, nausea and vomiting etc. and they are tackled accordingly. This sort of complications did not influence the operative outcome. But in follow up, we faced some sorts of delayed post–operative complications like graft rejection, wound infection, adhesion and recurrence of discharge etc. As we do a comparative study of delayed post¬operative complication in respect to different types of operation; it has been found that percentage of incidence of complications was higher in tympanoplasty with mastoid exploration than myringoplasty along. In Group A graft rejection was 16% where and in Group B and Group C, 28% and 27.2% respectively again adhesion were 4%, 7%7 and 9% respectively.