if anybody is interested do tell me, how it is possible to connect the sql or oracle database with the Asp.net Application.
Incase, the source of security is changed to Form based rather than Window based.
And also, the IIS security of the project is increased by reducing the rights of Annoymous user (i.e.) by revoking the rights of the Annoymous user from accessing the database.

--

Hi tarun
in this case ( with using SQL server ) then don't use integrated
authentication or windows authentication to access your required database .
with using SQL authentication you can pass the user name and password along
with CS to the database . this is even you site recognize user with other
form that their windows account ( form authentication) may be you could
store that user profiles also in some table into you SQL server .
Mohamed M .Mahfouz
Developer Support Engineer
ITWorx on behalf of Microsoft EMEA GTSC