i went there with my family friend. His name is Mushtaq in Gizri, in a street opposite to Total Petrol pump. dont have his number right now trying to call that friend he is not responding.
yes he do tune with computer. first i welded a nut on mu xzaust where he scrued O2 sencor to connect with computer.
i will give u his number soon i will get. 
@ Rehan
he will charge u near 2K to 2.5K for his job other then things that are faulty and need to be changed. and he wont work if u dont buy orignal stuff.
i changed my spark plug wires costed 6K
6.5K for fuel pump in fuel tank.
and some 3K for some other stuff.
and i bought all items my self nothing provided by him but recommended.