Searching and hiring a single room is always a hectic process in every city. Rooms are usually posted on doors of local shops, notice boards of school or colleges etc. One has to search through and locate a vacant room though their own contacts.
Rentaroom.pk brings you the widest range of rooms from all over Pakistan. This is a free service. You can search for a room and contact the owner directly.
There is great collection of hostels and range of guesthouses listed on rentaroom.pk.