I don't think ex model was launched in 2012. I bought one in 2012 and mine was a 1.6 base variant.
Anyways the car is costly at 5 lakhs. I found much better deals on olx, you can too.
And any car you buy no matter what brand just get it checked at an authorised service center.
It will tell you if the odo reading is correct or not ( dealers shines the car and reduce the odo by 50k easily)
They will check each and every part which might require replacement. For hyundai's always check the ac unit and steering rattle. My verna's ac is good but steering rattle is present
How to check - turn the steering to the extreme left and then right ( standstill car) you should not hear a heavy thud sound.
There was another user here who bought a santro from his relative and the odo reading was reduced by 80k kms I think. Dont trust anyone with your money.
Do update what you decide. BTW
what's your monthly running?