Hi Niranjan
Firstly, may I suggest that the POS for .NET forum is not the correct place to pose this question?
That said, assuming that you have a POP3 server, a Google search for retrieving mail from a pop3 server gives some very handy links:
http://www.quiksoft.com/newsletter/issue003/
and
http://www.exclamationsoft.com/ExclamationSoft/NetMailBot/Help/examples/complete/pop3/basic/retrieve.asp
were the first two hits I got out of lots and lots.
/Andy