It will be good but you can wait for ford ecosport as it mileage of 19 on petrol and gives more power than duster.
Duster - power 102horsepower,mileage-12
Ecosport-power 120 horsepower,mileage-19
...............ecosport will be at 6.50 and duster is 9
The petrol variants of Duster and Terrano return a low mileage of around 12-13 kmpl, therefore it is advisable to go with diesel variants. Also, the K9K diesel engine performs better than the 1.6-litre petrol engine.
The procedure of procuring the keys for Renault Duster is a lengthy one. You would have to place a request with Renault service center. A technician would come to your place and unlock the steering and tow it to the service center. Your old lock would be replaced with a new one and new keys would come in 15 days. The cost of the keys would be Rs 4,500 per key. You would also have to take your RC booklet and Insurance papers to your service center.