Basic Document:-

-Seven (06) Months Valid Passport with Old Passport if have one.
-Visiting Card.
-Recent 2 copy photographs  (white background only, photo size 35 mm X 50 mm, Matt paper).
-Bank Statements last six months with a bank solvency certificate 

For Business Person:- 

Renewal Trade license copy with notary public ( English Translated )
Memorandum for Limited Company
The blank page of the office pad.

For Job Holder:-

No Objection Certificate 
BMDC certificate for Doctor 
BAR Council Certificate for Advocate

For Student:-

Student ID card Photo Copy.
Birth Certificate ( Only for Child & Infant).

Others:-

Marriage Certificate Copy (For family application only)