Gratuity payment related query

I have a question to help my friend.Please if anyone can help.If his basic salary is INR 11750 and he have worked for a company for 7 yrs and 8 months and have resigned from the company on 21st November then what will be his Gratuity amount payable. The company where he has worked for has computed his basic INR 8225/- based on 21 days on November 2019 after which he resigned and calculated the last drawn basic for gratuity payment. Now my question is the last drawn basic on which the gratuity calculation is to be made will be Rs.11750/- or Rs. 8225/-?