reimbursement in gst

Ranjeet Singh (190 Points)

29 March 2018  
A is a labour contractor . A provide labour service to B at the time of making invoice B says don't charge GST on amount of ESI and PF . but Agree to Pay ESI and PF separately. And B also says show ESI and PF amount in invoice without changing GST . Is this transaction is valid . and why

please clarifying this