GST applicability on renting buildings

RAKESH SHARMA (FINANCE OFFICER) (73 Points)

24 February 2021  
we have taken a building as guest house on rent from civil contractor for Company staff who is registered in GST and he provided the building from local resident who are not registered in GST with lumsump amount of Rs 240000 annually rent.
Now contractor is asking to raise the bill to company ...
1 what kind of the bill he will raise ..supply or service or reimbursement to Company
2 .What is the HSN Code..
3.Interstate GST applicable because Company having GST No in Both the state building in Karnataka and Comaony in Andhra pradesh . Transit period from Karnataka guest house to Andhra at Company is 25 km only ..
4.contractor from Maharashtra..