For this, we would suggest you walk into the nearest service centres. You can click on the following link to see the details of the nearest service centres and selecting your city accordingly - Service centre.
Both cars have the same machinery and transmission set up. If you prefer more space, then you may go for Hyundai Aura AMT and if you want a hatchback with more features at a certain price, you may go for the Hyundai Grand i10 Nios AMT. Moreover, you may have a test drive of the cars for a better idea of comfort and drive quality by visiting the nearest dealer in your city. You can click on the following link to see the details of the nearest dealership and selecting your city accordingly - Dealers.