There is nothing like tuning in EFI cars everything is done by ECU, what they do in the name of tuning is just clean the plugs and nothing else so don't get fooled by this term !!!. What you should get done after each 5000 Kms is what they called package(they r doing that in 1200)which includes brake service, plug cleaning ,alignment, wheel balancing)as it is required by suzuki for warranty however even that you can get done after every 10,000 , that will be fine enough.
I would again recommend not to go to Burj motors, best in faisalabad is lyallpur motors and there mechanic Yasin is good, but one thing remember always get work done under your supervision and don't leave the car alone :). You have new car and till 100,000 Kms you should face no issue, one important thing i want to mention is that don't use water in radiator as water of faisalabad kills the pipes, always use best quality coolant otherwise your radiator will get messed up.