labour supply!!!

Naman Gupta (60 Points)

22 July 2017  
if some one provides labour to any department and get some amount I.e. 5,00,000 including commission and rs. 4,80,000 distributed to his labour then what is the treatment under gst?? is gst lavyied on whole amount or his commission amount???

and who is lible to pay gst?? contractor or department???