O damn, I wrote you reply, and it is gone:(.
I'll go again...
Hi Gauravthkur! Welcome to DC!

Here are answers for your concerns:
1. DC has levels, each level has different limits or unlimited options for entries. Check this:
https://www.designco...ntest-as-i-likehttps://www.designco...-designer-levelSo, use your entries wisely:)
2. Unfortunately, we can not delete/withdraw any entries, except approx 2 months after contest closing.
3. Same thing as 2.
Here are the links which will help you to understand it better:
https://www.designco...se/Search/IndexDesigner Guidelines - Powered by DesignContest.comIf you still are not clear with some things, you can always go trough the forum threads or post one by yourself, someone will help you.
Good luck!!!