Hello!!
A drug inspector's work is to check the quality of the drugs and and cosmetics which are to be manufactured. The interested candidate should hold a bachelor's degree in pharmacy that means they should have physics chemistry and biology as their subjects in 12th. The candidates need to take entrance exams conducted by State government or independent pharmacy institutes. Then the aspiring candidates can sit for the exam conducted by UPSC, staff selection commission or other state service selection boards to be selected as a drug inspector. You can also check the following link for more information.
https://www.careers360.com/question-how-to-become-a-drug-inspector-after-b-pharmacy

Hello Tushar,

In order to become a Drug Inspector you need to have a minimum bachelor's degree in Pharmacy medicine or microbiology

and at least 18 months experience  in manufacturing or analysis of Antibiotics or parentral products.

After satisfying these eligibilities you will be able to give Drug Inspector Job Exams.

Thank You.