Place of supply

As per section 10(1) (b)  of the IGST act  2017  , IGST will be applicable . 

please confirm with others also. 

Extract of Section 10 of IGST Act 2017

1(b) where the goods are delivered by the supplier to a recipient or any other person on the direction of a third person,  it shall be deemed that the said third person has received the goods and the place of supply of such goods shall be the principal place of business of such person.

Principal place of business of byuer in our case is Karnataka.

Referring to above provision, Place of supply in this case shall be Karnataka.

Hope it helps.