gst on extra bed in hotels

Prameet Chawla (27 Points)

07 July 2017  
the room tariff of the hotel is 2400/- which makes the GST liability 12%. if the guest asks for extra bed for extra person charged at 500/- what will then the GST rate applied be on 2900? at 12% or 18%(for room rent ranging from 2500 to 7500 bracket)