GST on hotel accommodation in case intra state

Pradeep Golekar (Accounts Executive) (21 Points)

16 July 2018  
Hi...
Our company is GST registered with Maharashtra state. So in many time our employees used to stay in hotel at Delhi (mostly) for official purpose. Since the hotel is GST registered with Delhi state. They raised the bill showing CGST & SGST 28% directly bill to company @ registered Mumbai address of the company.
How can they charged CGST & SGST instead of IGST?
Even after it is the intra state transaction?
Pls guide.