The book Advance Organo-complex is designed for UG and PG students according to UGC curriculum is concerned, Most universities included this syllebus in their curriculum. In this particular book covering all the topics . This book also useful for the preparation of NET,, SLET, and other competitive examination, all covered topics in this book are easy to understand for self preparation of examination. Every topic has been included with accuracy and clarity of subject is concerned, I hope this book Advance Organo complex is useful for teachers and students. The author will great-fully acknowledge suggestion and comments from the readers.