As the project tracks binary files through Git, over the years Git has stored references to many files no longer present (or even relevant). The initial repository clone takes around ~700 MiB, while the project size is less than 200 MiB.
# Using HTTP protocol
git clone --depth 1 https://github.com/tedxnitksurathkal/tedxnitksurathkal.github.io.git
# Using SSH protocol
git clone --depth 1 git@github.com:tedxnitksurathkal/tedxnitksurathkal.github.io.git
While you can use any web server to serve the site, I recommend using the ruby gem serve.
gem install serve
cd $PROJECT_DIR
serve