Should I get a fleet of used tigor evs?

l've got an option to buy 10 Tigor evs each run around 85k kms commercial registration, the cars are from blu smart.
Im thinking to buy all 10 for 25L rupees and put them on rent to companies.
These are long range variants
Pls help me what should I look for while buying these vehicles, what's the due diligence I should do before buying. What is the maintenance cost I should keep in mind after buying, what are the known issues I should look for? Help me please.
2022 commercial registered