Hi @Sanat Gupta welcome to the Atlassian community.
In order to delete a project, you first need to delete all the repositories pertaining to that project. Only then you would see the "Delete button".
Here are the related links to refer before you delete the repositories:
Stay safe and stay healthy.
Yes you can delete it
following step are
HI @Sanat Gupta Welcome to the community.
You can follow the below documents to delete the projects in bitbucke.
Let me know how it goes.
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