After that a page opens up, Click on the "Add Salary Expenses" button at top right  

After that a page opens up, Click on the "Add Salary Expenses" button at top right .

After pressing the button a form opens up which contains list of employee with respective information such as working days, salary, overtime, transportation,employees meals, insurance,tax. After filling up the information user can press "Confirm" to add Salary of the Employees.