The present study emphasizes on designing of an ESP Pre-service/In-service Extensive Writing Course for bank officers. Their workplace demands maximum accuracy and precision in documentation of facts and figures related to accounts, debits, credits and transaction. Hence, to propose the course, needs analysis is done. Needs analysis includes survey with the help of questionnaire, semi structured interview and the written test i.e. an IELTS test to check the written proficiency of the participants so that they may meet the standards of their future workplace. The responses collected through the survey show that the participants lack enough proficiency in English Language to draft an effective document in the banking context where they record and confirm various operations. They need to improve their writing skill in the context of their workplace so to achieve maximum proficiency in producing any written document. Keeping in view the demands of the banking profession, an ESP Pre-service/In-service Extensive Writing Course is proposed in this study.