Hi @alok76in, if you are using the JetBot.org SD card image or containers, it should already have PyTorch installed. You may need to run the container to see PyTorch installed in python3.
To answer your question directly, should you install PyTorch manually, you would do it using one of the wheels from the post you linked to. When you say they don’t seem to open, what error message are you getting? You want to install one of the wheels that matches the version of JetPack-L4T that you are running (you can check your L4T version with cat /etc/nv_tegra_release)