Bro! City/corolla is a better option
Nissan Sunny is also a very good option.
Although i do not like Liana much, but it can be a good option for you with low milage and not so old model. Works good on CNG as well
City/Corolla or Nissan sunny is my pick.
Other than that it is hard to believe people since people lie alot as per my experience. There are honest people as well but this is a cruel world. Especially, for the peace of mind it is better to go for a new car, when you are spending this much amount.
If you are going for a used car,at least, go for low milage /latest model and take denter/mechanic with you.
Best of luck