Contents: 1. Introduction. 2. The Jain population in Bombay (1850-196) - an overview. 3. Cotton boom (1861-1865). 4. Contribution of the Jains to the economic development of the city of Bombay (1866-1996). 5. Social structure and occupational avenues. 6. Role of the Jains in health, education and philanthropy. 7. Contribution of the Jains to the cultural life of the city of Bombay. 8. Conclusion. Appendix. Bibliography. Glossary. It gives great pleasure to present my doctoral study titled