You will need;
bank statements, payslips, or some other evidence to show that you can pay for the trip and that you have enough money to support yourself and any dependants without working or getting any help from public funds, and
evidence that you intend to leave the UK at the end of your visit (for example, a letter from your employer).
If you are visiting family or friends you will need:
a letter from your sponsor (the person you are visiting) explaining your relationship with them and the purpose of your visit, and
a copy of the bio-data page (the page containing their photograph) of their UK passport or, if they are not a UK national, evidence of their immigration status in the United Kingdom.
If your sponsor will be supporting you during your visit, or paying for the cost of the visit, you will need:
payslips, bank statements, or some other evidence to show that they have enough money to support you.
Or visit the website below
http://www.ukvisas.gov.uk/servlet/Fr...=1018696642519