Can i claim ITC in following case

I have renovated my shop through a interior designer

Case 1:. He charges me a lumpsum amount and also gst (his own material and stuff)

Case 2: I purchase the material (paid gst on same) and provide him , and he uses the material and charges only for his service (gst included )

So can I take the input,

If yes ,then Am I violating blocked credit section ( 17(5))
Please advise.