Tata opens bookings for Altroz CNG for Rs 21,000

Available in four trims: XE, XM+, XZ and XZ+

Boasts a unique first-ever dual cylinder technology to open up boot space

The tanks are placed next to each other and sport 30-litre water capacity each

Likely to be paired to 1.2-litre NA petrol powertrain with an output of 73.4PS and 95Nm in CNG mode

Launch should happen in the coming days as deliveries are slated to begin in May

The Altroz CNG was first showcased at the Auto Expo in January and will be launched before May