@Shani
I believe you need to think harder on the parameters, which influence your decision.
First of all 5-10 lakh is such a big range. Secondly you have both hatchbacks and sedans in your selected list.
If the car has to be used by the whole family, then wouldnt it suit you if the car was a sedan especially when you plan to have a cng kit installed as well?.
If you go for CNG cultus or Vitz you won't be left with any boot space for luggage.
From what you have shared so far, I would have probably gone for decent sedan like Lancer or city (slightly used) and top it up with a small car like Mehran or used santro.
This way there will be a "khota car" which everyone can abuse, and the maintenance will not be a big issue. At the same time I will have a decent sedan (not to be abused)
Kheir, if you do some more homework and share some thought out paramters with us, then you will get more objective advise from the PW members.