You can start with checking your IACV. Check if its the one for Auto or Manual. If you can't check that, you can ask a friend with a similar car to let you try installing his IACV for 15 minutes and see if you feel a difference.
If you do, just change it. It'll cost 2200 rupees from Bilal Ganj, and about 8000 from Honda dealers. Just make sure its from a MT this time.
If you don't feel any difference, then it is the clutch as you said " magar jab drive karta hoon to car aahista aahista race pakarti hay" - try finding a reliable place to get it from. In Lahore, Honda House is the best place to get genuine Honda parts at very reasonable price.