Asad, MS Chouhan Organic Chemistry does not cover the theory part. It only has a collection of a lot of problems on all topics of Organic Chemistry with their solutions. It covers topics like electrophilic substitution, ketones, aldehydes, hydrocarbons, etc.

Although the book is one of the best in Organic Chemistry currently in the market. It is a good idea to go through it if you are aiming for JEE or any other exam altogether. The questions are of advanced level covering all possible techniques, exceptions, etc and will surely make your concepts very strong once you complete the book.