I am studying 3rd year B.C.A. I have to submit project on asp and .net. could you please suggest me some projects

Since you are on the verge of completion of your Bachelor’s degree in Computer applications so you would be knowing how to create programs in visual basic.
As per your request here is a list of certain topics on which you can make your projects.
• Purchase and stock management system
• Tour and travel management
• Theater seat reservation
• Online book sharing portal
• Online wedding planner
• College blogger

ASP.net projects list