Hi Hema, Browser Navigation commands are used to perform navigation operations in browser. Navigation Commands in C# are implemented using INavigation Interface. Different types of Navigation commands available in Selenium with C# are:
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GoToUrl – This command is used to navigate to particular URL or website and takes URL as string input parameter. Syntax: driver.Navigate().GoToUrl(URL); 
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Back – This command is used to navigate back to previous webpage in browser history. Syntax: driver.Navigate().Back(); 
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Forward -This command is used to move or go to next webpage present in browser history. Syntax: driver.Navigate().Forward(); 
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Refresh – This command is used to refresh the webpage. Syntax: driver.Navigate().Refresh();