Hi Shuvo Brahmachari,
Please follow below steps to record and track cash advance to employee.
1. Please create an 'salary' under expense and 'salary payable account' under liability.
2. Then create an expense and select 'Salary payable Account' to create a liability for cash advance payment. So that it will appear on your Balance Sheet
3. When you paid that expense please pass below journal entry.
Salary Expense A/C Dr xxxx
To Salary payable Account A/c Cr xxxx
Now, it expense will appear on Profit and Loss Account and Balance Sheet amount goes zero
Hope this helps.