: The Study was conducted in Dr. D. Y Patil Medical College of Dr.D.Y.Patil Vidyapeeth, Pune and was for a period of 3 years. Fistula in ano is a track lined by granulation tissue that connects the anal canal or rectum with skin. Fistula in ano is a common problem faced causing great amount of discomfort in patients. The aim was to study the etiology, clinical presentation, clinico- radiological correlation, and postoperative complications. The study group consisted of patients who were clinically diagnosed with 1o fistula-in-ano within 15- 75 years of age, and were clinically evaluated and investigated radiologically and followed up post operatively once in 3 weeks for the first 6 months, once every 6 months for a total period of 3 years. In our study fistula in ano was common in 30-39yr age group, and presented commonly with perianal discomfort with discharge and radiological investigation correlated with the intraop finding. The two most common complications were anal incontinence (to flatus and liquid stools) and recurrence. The fundamental principles of careful clinical evaluation, control of infection, identification of 1o and 2o fistulous tracts with excision for all lower type of fistula and adequate drainage of the wound can improve the healing rates with minimal morbidity and recurrence. MRI is useful for identifying the fistula type and its 2o tracts..