Experience Letter , Reference Letter !! ??

[moganlal]

Hello you helpful souls,
I have a few questions:
1) should my experience letter contain the references of the employer like HR managers's email id and phone number?
Anyway the letterhead will be having the company's website and fax and phone nos along with complete postal address.
If no reference is required on letter then how will Homeoffice verify?

2) What is reference letter? is it different from experience letter? if so what should it contain?

3) Do i need to present 2 piece evidence of experience letter? If so what is the other letter i present apart from experience letter?

many thanks,
Moganlal