Valuation rules regarding renting of accommodation under ap plan

Suppose a Hotel is renting its accommodation in AP plan, so in the Invoice the Hotel is charging a total amount say, Rs.5000. (this includes charges for renting of hotel accommodation and the food served by the hotel but no segregation has been made in the invoice for Lodging charges and Fooding charges ) and suppose the Hotel has a A.C restaurant on which GST is 18% and Tariff of the accommodation is Rs.2000 on which GST is 12% . under this circumstances , How to determine the output liability?