UK Ancestry Visa allows all the Commonwealth citizens who are the proven immediate descendants of UK citizens permission to live and work in the UK. You will have to make an application online and pay fees. You must ensure, you are above 17 years of age, and a commonwealth citizen and strong intention to stay in the UK for a longer period. The main benefit is that it offers a direct route to obtain Indefinite Leave to Remain and eventually a British Citizenship. Requirements are quite straightforward, your entry into the UK for this visa is based solely on family connections with the UK national. Read More - Can I apply for a UK ancestry visa in the UK?