Whether GST composition scheme can be applied to restaurant run by resort ?

No.......... you cannot opt for composition scheme for Restaurant under run by resort.
As per Section 10 , read with Rule the Service provider cannot opt for composition scheme except referred in clause (b) of para 6 of schedule II.
As per the proviso inserted vide amendment act 31 of 2018 , the composit dealer can provide services value upto 10% of turnover in the preceding FY or 5lac whichever is Higher.
And
As per the Proviso under sub section (2) of Section 10, Under same PAN you cannot opt for composition scheme & Reqular scheme at the same time. either all your business will be under composition scheme or Under Regular.

Hence In your case The resort is providing services (ie lodging) cannot opt for Composition scheme for Restaurant.


Note : As per sub-Section (2A) , if your turnover is below 50 lac , you can opt for composition scheme by paying tax @ 6% without ITC , covering both the business resort & restaurant under this scheme.

@ Ashly
since your turnover is below 50 lacs .
you can opt for composition scheme.