Hi Lavkesh Prajapati !
Here are some of the benefits of doing B.Pharma are :-
You can become a lecturer.
You can work as a consultant for drug manufacturers
You can become a medical representative who would give samples to doctors and push certain drugs
You can work in big companies like Biocon, Himalaya, Ranbaxy in market research, production, sales and marketing.
You can become an wholesale distributor
You can apply for government jobs
You can go for higher studies abroad and get into international expansion
You can take a medical store licence and give it for monthly rent to someone who can run the shop. (Not sure if its legal)
You can become a member of NGO's working on Free Drug related issues.
You can open a chemist shop.