Gst registration for different states

Dhanakirthi (Manager-Accounts) (34 Points)

03 July 2017  
Hi, we are commercial Rental space Provider from Bangalore..one of our Tenant Registered GST Under Tamil nadu as their head ofc in Tamil nadu and They are asking us to Invoice to Tamilnadu Address...as we are providing Service in Karnataka and how can i Mention Tamilnadu Address and tamilnadu GST Number?? please let me know ,if is there any provisions?.. Thanks..