i want to develope a website in asp.net using c#
and i want to do it as my minor and major project also
please suggest me some good topics

plese help

you could make a lunch order system with a back end SQL server DB and a log in function which allows staff to login and order their luch.

Develop a forum! or a Service Request system of some type. Alternatively, you can build some type of online store with a checkout process.

Recently i made a website on Dental Hospital using Asp.net and C#.
Other good topics are election system,Restaurant management system.etc.