I there any any permission required?
Datsun Go Plus can be registered as a Taxi without any problem. You will have to consult your nearest RTO office and see the rules for registration of a car as a Taxi with 7 seats and then with a small 1.2 L petrol engine. It may get considered under a hatchback or sedan category. The car comes with enough space for 5 passengers but the third row of seats are very tight and can accommodate children only.