I have tried below names for angularjs inside conf/local.conf file, but that package is not getting installed.
IMAGE_INSTALL_append = " angular-js"
IMAGE_INSTALL_append = " angularjs"
Is the packeage name is different? How can I install AngularJs in yocto?.
You need a need a recipe to install a package this way. Do you have a recipe someone else has written, or have you written one your self. There are a couple recipes that others have written, but none match the name you are using. Here is a link that will search for packges named angular link.
I would suggest you spend more time getting familiar with recipes, yocto, and bitbake. Checkout the users manual for a basic understanding of bitbake.