If you are starting from scratch, then you might want to follow these steps to create your repository

Set up your local directory

###Set up Git on your machine if you haven't already###

mkdir /path/to/your/project
cd /path/to/your/project
git init
git remote add origin https://arunpksh@bitbucket.org/arunpksh/nanosculpt.git

###Create your first file, commit, and push###

echo "Arun Prakash" >> contributors.txt
git add contributors.txt
git commit -m 'Initial commit with contributors'
git push -u origin master

Great job, now you're all set up! Get started coding or create a team and invite people to work with you.