Hi Meera,
BizTalk RFID can be setup to dump all Tag Events into an SQL Sink, from where your ASP.NET application can tap them.
Could you please provide more details on the RFID system you have and also the exact kind of connection between SQL server and RFID Server you expect?
More information on how BizTalk RFID works is available at
http://msdn.microsoft.com/en-us/library/dd352496(BTS.10).aspx.
A sample scenario for RFID is described at
http://msdn.microsoft.com/en-us/library/dd335979(BTS.10).aspx.
A tutorial on using the SqlServerSink event handler to dump tag events into SQL is available at
http://msdn.microsoft.com/en-us/library/dd298762(BTS.10).aspx.
Thanks,
Sharath Palavalli