If you are a Commonwealth Citizen and one of your grandparents was born in the UK and you wish to come to the UK to live and work, you may be eligible to make an application for a UK Ancestry Visa.
You do not require a sponsor in the UK to make this application, but must be able to evidence your relationship to your UK born grandparent.
This visa will be valid for 5 years after which you will be eligible to make an application for settlement in the UK. This visa also allows you to being your family members to the UK will you as your dependants.