Unfortunately, I couldn't find a free PDF of RC Chandna's book on regional planning and development. However, you can try searching for his publications on online academic databases, such as ResearchGate, Academia.edu, or Google Scholar.

Regional planning and development is a crucial aspect of urban and regional planning, which aims to promote balanced and sustainable development of a region. RC Chandna, a renowned expert in the field, has made significant contributions to the understanding of regional planning and development. Here is a guide to help you understand the key concepts and ideas presented by RC Chandna: