We are confused in your query whether you want to start third party manufacturing unit or want to take franchise of any company. Both are different things.
Read in Detail about Pharma Franchise here
Pharmaceutical companies don’t provide franchise for opening manufacturing unit. They can give franchise for marketing their own products in market. or you can work as intermediate between manufacturer and marketing company. Receive order from marketing company and place to manufacturer after fixing your margin/commission.
If you are interested, you can set-up your own pharmaceutical manufacturing unit. Read requirements and procedure to start pharma manufacturing company here