The present work focuses on the issue of the falling membership in the so called mainline churches and increase in the performance of the Pentecostal churches. The research focussed on the Assembly of Believer’s Church which had a phenomenal growth since the time of its inception. The research aimed to study the mission strategies of ABC and whether they can be adopted in other mainline churches specially the churches in the city of Gonda, where the research is focussed. In the first part of the present work, a brief history of the Pentecostal movement in India is given with a brief survey on the churches in the city of Gonda. In the latter part, the research brings out the history of the ABC, presents and analyses the data and proposes implications for the churches in Gonda. Contents Acknowledgements Preface List of Abbreviations List of Figures List of Tables Introduction 1. Gonda: An Overview 2. Pentecostalism: Beginnings and Roots in North India 3. Emergence of the Assembly of Believers Church 4. Presentation of the Data of the Empirical Research 5. Major Findings and Implications Conclusion Bibliography Appendix Ashish hails from Gonda, Uttar Pradesh. He is an ordained minister in the Diocese of Lucknow, Church of North India. He is currently pursuing his Doctoral Research from United Theological College, Bangalore in the Department of Mission and Ecumenics.