Hi @Varunish Garg , welcome to Atlassian Community.
@Varunish Garg welcome! Do have a look through our product groups and find areas that are relevant to the products you use, and let us know if you have any questions! We're happy you're here.
Welcome to the community, Varunish! If you're interested in learning some more I suggest taking a look at some of our free courses for the Atlassian products. Check them out here.