For the availability of Santro BS4, we would suggest you walk into the nearest dealership as they will be the better person to assist you because it depends on their stock book. You can click on the following link to see the details of the nearest dealership and selecting your city accordingly - Car Showrooms.
For the availability and waiting period, we would suggest you to please connect with the nearest authorized Hyundai dealer in your city as it depends on their stock book. Follow the link and select your desired city for dealership details.
Hyundai has equipped it with a 1.1-litre four-cylinder petrol engine (69PS/99Nm), paired with a 5-speed MT and an optional 5-speed AMT. A factory-fitted CNG kit is also available with the Magna and Sportz, but only with the manual transmission.