not possible. - National Bank Branches does not have access to Motor Vehicle regn wing in SINDH (towns) -
however you can give it a try by visiting national bank of pakistan branches which deal with tax collections.
- send the car regn book original & last paid tax receipt original to some of your trusted friend in Karachi by TCS - he can goto National Bank branch next to Nishat Cinema M. A Jinnah Road, Karachi between 10.30 am to 2.30 PM - MVR counter is open for tax collection and they have online access for that. he can pay tax collect the receipt & tax token sticker walk 250 steps to Gul plaza TCS / OCS / Leopard centre and dispatch the papers same day to you.