In UK, for instance you need to have 40 points ( 30 points  = CAS + 10 points = Enough Money) and following are the documents required to be submitted along with tier 4 (student)  visa application. 

• Visa application Form (Complete) 
• Acceptance letter/CAS. 

What is CAS? CAS basically stands for Confirmation of Acceptance for Studies and each CAS has a unique reference number and depicts the information about the course of study.   

If your Tier 4 sponsor has assessed your qualifications in order to assign your CAS, you must send us these qualifications with your application.  

• Bank Statement etc.  

Your Bank statement should cover your course fees and living expenses. E.g. your first year fees must be shown in your bank statement. In case your course’s duration is less than a year then you must carry the complete amount of the course fees..  

Student needs to give evidence that he can afford 1334 pounds / month ( 9 months ) in case he is living in London. And if you are living outside London then the amount will be 1023 pounds / month ( 9 months). It is pertinent to mention that if you paid the course’s fee to your tier 4 sponsor then the Bank statement showing the balanced amount of the remaining fees shall be filed along with the application.  

You must provide a specified document, which exhibits that the funds you are using to meet the maintenance requirements have been held for a consecutive 28-day period (finishing on the date of the closing balance) ending no more than 31 days before your application and no later than the date of the application.

• Academic Technology Approval Scheme. This certificate may be required for certain subjects. 
• Medical. You need to obtain a TB certificate if you are going to stay in the UK for more than 6 months, Immediately prior to your application. 
• Result of IELTS, TOEFL, GMAT etc. 
• Any other document. Visa application fees. Etc 

After submission of application you may be called for an interview for further screening. The two most important factors in an interview which the interviewer needs to check is the genuineness of a student and his English Language Skills. We will guide you further in accordance with the prerequisite.  

Working hours and earnings 

Working hours allowed : A full time course below degree level ( RFQ Level 6(and equivalents) then 10 working hours per week during term time and full time during vacations. On the other hand if you opt for a course at degree level ( RFQ Level 6 (and equivalents) then 20 hours per work during term time and full time during vacation is allowed. Wage rate / hour etc. international students can get a job starting from 5.9 GBP to 6.5 GBP/ hour ( average) 

Note: The above mentioned list is not conclusive, please call us for further guidance. It is important to highlight that some of the information has directly posted via official website of UK Migrant Guidance .