Regarding GST Invoice Billing

Dear Sir,

  Kindly help me Regarding about Tax Part of GST.

ISSUES:-

1) If we purchase material from supplier (at Banglore) And material was delivered    by the supplier at customer location (Banglore) .  But  Our company was located    at HYderabad. In this case which taxes are applicable :- CGST & SGST or IGST. Please  explain any of them?

2) If we purchase material from supplier ( at Hyderabad) and our company also located at Hyderabad . As per our request Material was delivered by supplier at  Customer Location and he was at Banglore. In this case which taxes are applicable :- IGST or CGST & SGST. Please explain any of them ?

With Regards,

Krishna