If you are planning to use car on petrol, go for Swift
If you want to opted for dual fuel i.e. CNG too, go for Liana so that your car will remain practical without sacrifying the boot space.
Never buy a car with resale in mind. In this way you will never enjoy your ride. Whatever your choice is, buy with confidence.
Liana also comes with ABS so there is a safety as well same as Swift.