Background: Pulmonary complications have detrimental effect on the disease progression leading to increased hospitalization, postoperative morbidity and mortality. Aim: To find the incidence of postoperative pulmonary complications in patients undergoing elective intracranial surgery. Methods: This Prospective observational study was conducted from 2020- 2022 in Superspeciality hospital, Shireen Bagh, Srinagar over a period of 18 months after approval by Institutional Ethical Committee. All patients underwent questionnaire about the preoperative data including Age, Sex, Weight, ASA physical state, History of smoking, Obstructive sleep apnea and Snoring. All the intracranial procedures were performed under general anaesthesia. After the surgical procedure patients were shifted to Superspeciality ICU and were followed daily from immediate postoperative period until a new surgical intervention, hospital discharge or death.