What concepts of mine should be clear before making my final year project in C sharp(c#)?

Hi Vishal You should clear following basic points before choose any project for your final year.

First you should clear your project definition.
If possible you should choose unique project which may helpful to any appropriate community or country.
Clear Your basic requirements what actually you want to develop ? it is possible if Yes Then how ?
Calculate Your project timing plan.
Clear your efforts for development.
Clear Your basic concepts of oops.
Clear Your basic concepts of C#.
Clear Your basic concepts of Database.