The white and yellow Maruti taxis mainly ply the cities and towns and around the country sides. You need to haggle for the price to get a good deal. If you're travelling around inside the town/city it is possible to share a taxi on a "contri" basis. Flag down a taxi going in your direction and jump in. You will need to contribute an amount of about 1/5 of the normal fare. It's also now possible to dial a taxi in Aizawl.
Different types of car are available for rentals. From SUVs to small cars. Exclusively hired vehicles are available at Rs. 15/- per km + Rs. 800 for each night halt and upwards. There are several rental agencies available otherwise who can arrange this, alternatively enquire at your hotel.
Mizoram has a state transport corporation that connects the whole of Mizoram. The cities and towns are also serviced by minibus and also by sumo. The rides are very bumpy and the buses are not so spacious. If you can shell some extra money and hire a cab, do so because it will be really painful the next day.
Tata Sumos which run between all the towns and cities, are available from one town to another at a reasonable rate on a seat basis. There are many booking counters around Lower Zarkawt, Dawrpuinear Millenium Centre and in Upper Zarkawt in Aizwal where one can book a seat with choice of seat no. A trip to Champhai cost nearly Rs. 400/- per head. A Sumo will seat 10 passengers - 2 in front, 4 in the middle and 4 at the back.