A book which covers two different facet of business management concept of consumer behaviour as well as marketing planning in mobile telecommucation. A work which is a perfect example of empirical research. In this book basics of consumer behaviour and marketing planning have been elaborated. This book is an attempt to ascertain the linkage between consumer behaviour and marketing planning. This research work is in the field of mobile telecommunication system in uttar pradesh (a state in North India). Data have been both primary and secondary in nature. Six mobile service providers were considered. 450 subscribers, 50 dealers and 50 marketing staff were questioned during the study. This book will certainly facilitate the researcher in conducting consumer research in different areas of marketing.