For getting certificate

How many project i have submitted atleast for getting certificate

Hi chandra1999prasad, you should atleast publish 1 project successfully in the youtube and submit the link on the boltiot.

There is only Capstone Project required to be submitted all other projects present in the course are for self asessment.{Except those present at the top, those are challanges you may want to complete but not mandatory for the certificate}
Besides, Completion of course and Certification Test is mandatory to get the certificate in which your Project link on hackster will be asked. Its video is optional.