as mentioned in the documentation, you need sufficient project permissions for the issues from your JQL query and the Bulk Change global permission.
So if you don't see this option on the top right corner in the issue navigator you don't have the needed global permission (screenshot from Jira Software server)
You're welcome Kishore. I can imagine that your administrators removed the global permission by intention from regular users as bulk change implies bulk transition, delete, move, etc. So just in case tell them what needs to be changed so just in case they can do it for you.
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