What is the difference between "Mazhab" and "Deen"?

The basic difference between Mazhab and Deen is as follows
Mazhab have a narrow term which covers a part of Deen you can say mazhab is just dealing with your worship , their methods, type of worships. While Deen is something broader term which covers your Mazhab as well as your whole life . Deen gave us the whole code of conduct of lives, in Deen we learn how to deal with people how to behave how to work how to trade how to improve ourselves. Means Deen gave us the instructions about our whole life and every task we have to deal with.

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