Prescription audit is a tool as well as a technique and its application is science as well as an art. The quality of a prescription reflects the competence of a physician and his attitude towards rational prescribing. The present study was carried out at Siliguri by collection of prescriptions from government hospitals including Medical College and private practitioners in a randomised manner from different streams, after analysis of about 37000 prescriptions, there were many prescription errors, need to be improved for better patient care. An increase in correct prescription writing practice and some seminars on rational prescription writing for senior doctors can reduce the errors.