Whenever I am searching anything on Chrome i.e. directly typing in address bar and performing search. I am getting the result in which the first link is not available, only its content is available.
You may have an extension such as AdBlock Plus installed which is preventing the first Google search result from being displayed. Try disabling this extension and re-entering your search.
How to disable a Google Chrome extension:
For a more detailed answer, post a list of your installed extensions and I shall tell you which ones to disable. Also, I can confirm that your issue is not related to searching in the Omnibar, as the below screenshot shows.
It looks like you have the "SelectionLinks" extension installed: that's a malware.