Sgst & cgst or igst

Hi,

Need a suggestion. We are a hospitality management company having the registered office in Bangalore.  

We have a managed hotel at Delhi, an agreement made and appointed Security Guards for the hotel, for which monthly tax invoice is raised to us by the security company and the payments are made by us in Bangalore.  

Now the issue is they are giving us an invoice with CGST & SGST, so we are not getting the benefit of ITC.

Actually, they are supposed to raise IGST invoice or not?

Please Suggest.

Thanks & Regards

Harindranath Menon