Hotel Composition Query

As per my knowledge alcohol is not considered in GST act yet.

Basically composition scheme are given 2 manufacturing industry specially restaurant service and other suppliers who are related to that.

Specifically composition levy is not eligible for any supplier of services other than the supply of restaurant services.
In your case, you have a hotel if there is a restaurant services only, then you can enjoy the composition levy but in case you have a Both restaurant service and Hotel lodging services  both the service are under same name and same pan card then you can not opt for the composition scheme because hotel lodging business is not eligible to get under the composition scheme.

And in case of the alcohol I think I was correct.