Steps to Start Spoken English Classes
i. For one month, focus on thorough preparation of the subject with good reference materials, such as those from the British School of Languages or the Centre for English Languages in Hyderabad. Pay particular attention to rehearsing the accent carefully.
ii. After this preparation, consider placing a brief ad offering your services for a small group at home, during late evenings, or in holiday-only batches. Initially, the number of admissions and income may be inconsequential. However, once word spreads, you could secure institutional assignments as well. There is ample work for seasoned teachers in this field.
Spoken English institutes are widespread. Unfortunately, some of these institutes are staffed by less than competent faculty, purely to fulfill business interests.
Best of luck.