1. Financial investment - 70 to 90 Lakhs for setup and land.
2. Land requirements vary from per franchise brand.
3. The hygiene standards are as per the guideline of company.
4. Water treatment plant setup
5. Water resource options.
6. Bottling suppliers.
7. Recycling suppliers.
You can get information and how to proceed in such case by using the franchiseindia's information on this topic. They have process laid down properly.
As for the return of the investment, you can find that most of the hill station, and places outside city makes the most money from the mineral water. You can also setup the distribution center nearby the temple and some other specific places.