PW site wasnot accessible here in islamabad somehow and i wasnot able to post update.
1) I had one problem the 'tukkkk' sound and it comes when immidiately brakes are applied since i had older engine
2)the 'karr karr' sound which kept on coming for a week or two, got it inspected, since i changed the shocks and i thought it could be it.
Applied tests by @capsat and few by @ser_gtr, they were negative.
The shocks mech, took a drive with me and after thoroughly checking, he said the the 'bushes' of arms(chimtay) are dried up, and you need to apply disel from service station also apply some oil 
disel? never!
What is needed to remove their dryness?