There are some people who can make a spare smart key but I don't have their contact. You'll will need to ask someone from ISB or RWP.
Last time I checked in Lahore (about a year back), the software for copying the Mira Custom's smart remote was not available. More recently, the person in Lahore whom I initially contacted said he can make a copy, but he can't copy the smart remote to another smart remote. He will only give me a regular chipped key. I even bought a spare smart remote from China, but it is lying unused with me.