I do not know about its market price, however, IMO, used Ciaz in 20-22 lac PKR, low mileage, non-accidental, etc. seems a great bargain! 
I think, it a good option.
I think you may go for it. Just try to negotiate on price and if you are able to grab it in 21.5-22 lac PKR, then IMO, the price seems good.
Still, let experts elaborate on it.