How to renew Student visas in UK?

International students whio are studying in UK must have visa stamp/sticker in the passport. If the student visa is going to expire in the next six weeks and you want to continue your education or want to stay for the congregation you must apply to extend your stay.

1.This from is for Students who want to continue their education in UK.
FORM CLICK
Guide CLICK

2.This from is for Students who want to attend their convocation ceremony or want to change status as visitor.
http://northumbria.ac.uk What you will need?
Visa Letter from the School office
Visa Attendance Letter from the School office
Exam results (from the School office
Original bank statements of three months
2 Colour passport-sized photographs
Police Registration Certificate If have
Sponsorship Letter
Financial Support Letter from relatives or friends
Passport
Postal Order: £295/£395 payable to 'Home Office Leave to Remain'
ATAS Certificate (if applies)

Home Office - http://www.ind.homeoffice.gov.uk/