The present work tracing peculiar characteristic features of different types of architecture that flourished in India in ancient times. As the detail study is not aimed at we have selected here only the best examples representing the different styles of architecture for our purpose and focused our attention on the survey of distinctive elements such as the technique, material, origin, plan, elevation, roof, tower, exterior, ceiling, interior etc. of each of the examples. An attempt is also made to explain the structure of different buildings. The data is arranged here in the following manner: Introduction and Early Architectural Activities, Stupa Architecture, Rock-Cut Architecture and Hindu Temple Architecture. Though it is only a sort of introduction to the subject, I believe that it will prove useful for the elementary study to the students and scholars alike and will also inspire some students, to go deep into and find out themselves the importance of our ancient heritage.