its quite fair demand... but as i own one... i wont recommend you to but one... as the diesel engine need over haul every 100,000kms or so.... and oil leaking and giving smoke is quite common in this Diesel Model...
we have kept it is the only reason, we also have CNG/Petrol car and a Petrol car as well... and we love diesel for its pick on long routes... otherwise they are quite expensive to maintain these days... as diesel prices are going up and up day by day....