3B after extra invoice

Dipankar Guria (86 Points)

28 April 2018  
mera client ek job work hai, maine 3b march file kiya hai, after 3b return vorne ke baat client mera ko r vi extra invoice add korne bola hai. maine gstr1 mai add kor diye ok. mera question hai extra invoice ka payment kaisa koru, please advise me