Does Zen Estilo have a 12V DC Cigarette Lighter point? If Yes Where?

Cigarette Lighter port most cars have them

It ought to have provision. A Wagon R does not have the cig lighter itself, but there is provision for it in the dash.

Look near the ash tray, usually below the (space for) audio system in the central part of the car.

Even if the lighter itself is not there, you may have to worst, put in the socket and connect the wiring which is already there = you will not have to do any wiring.

Yes it does have a cigarette lighter.
It is to the left of the steering down near the A/c switch