gst on hotel accommodation

Sanjay Sanjay (50 Points)

25 October 2017  
one of my client doing the hotel bussiness he have 10 rooms 2 air-conditioned and 8 air cooling a/c room he charge 1100 and air cooling at 650 rs.last year turnover is 17 lakh.
what he do in gst charge gst on all rooms bill or only on a/c room bill or he gst free
kindly explain