all my good brothers! the issue has been resolved finally.i was referred to "BUTT AUTOS" G-10/4 I&T.the guy named Jehangir Butt deals in EFI cars mostly.he also has computer system to check the issues.I took him to home.he tested all the electronic system of the car,took almost 30 min.according to him the main connection under the steering was loose and was sparking.SURPRISINGLY,no fuse was burnt(serious concern!!!).might have damaged other electrical system but Alhamdulillah uptil now everything is working fine.
Will be going today to F-10 fog lights wala bloody chap.
Lesson learnt,never go to to these anaarri "decoration" idiots with a new car especially when it is under warranty.haram khaanay lgay huay hain besharam log.eik jaga se thorra boht kaam seekh k dusri jaga apni dukan khol lete hain.qeemat eik rupaya kam nai krren ge.aata jata kuch nai hai inko.
please pardon me for my words,as i dont have any other words for them at the moment.i am sorry!
P.S: i tried everything as mentioned by brothers Sk_Kingpin and Muzammil73.none of it worked.but still thanks a lot for ur help guys!