Experienced taxi owners had already ditched tata engines after the experience with V2 and TDi,Vista with the fiat engine is more on taxi now a days,
The taxi people had realized after V2/TDi that the low initial payment, low EMI and space is not the right option on opting a new taxi car.
An engine which can touch 3L to 5L kms on just a maintenance of oil/filter change,the fiat mutijet engine this has changed the taxi field.
More taxi owners are opting vista on the space they provide,and swift and ritz base model are also coming in the field.
The maintenance on these vehicles when done outside the dealer is as cheap as indica V2/TDi.
This is the same reason the Innova even though more expensive than Sumo is popular on taxi segment.
These cars after 5 years even after they had done these much of Kms still hold a decent re-sale value,
the taxi owners can just walk into any new car show room and exchange these cars without spending a penny more on initial payment.
But i agree that the fresh taxi buyers still buy indica as these cars are branded on the taxi segment.