Manufacturing And production is  perrenial  demand for consumers. With the increase in population the demand for produced goods increase with due course of time . And with this situation if you want to set an industry of your own ,you need to identify that which product is in more demand and will continue to be in demand.

Hence I Suggest you to to  Do Production Engineering/Metallurgical Engineering, Instrumentation Engineering  or Mechanical engineering. Production Engineering - Keep this as a top priority bacause every industry has production.

Thank you & All the best