@naveed_ahmad
I think, if you have applied for registration then why are you worrying? There is nothing to worry about if your ride has been registered with the relevant department, and you have been issued registration no. And no. Plates.
If no. Plates haven't been issued, then you can make temporary plates or write registration no. on some paper, card / gatta, etc. And affix. Without registration no. Affixed on the ride and driving it without it, can land one in troubles.
I hope it all helps. Thank you.