Sales return in GSTR 1 in case of change in Constitution

Avinash Kumar (35 Points)

06 December 2018  
Dear sir,

I had been registered as proprietor under GST since July 17. In June 18 I got registered as LLP due to change in Constitution of business. I sold goods under proprietorship and received sales return under LLP. Now how should I record sales return in GSTR 1 as original invoice is under proprietor ship and return against same invoice is under LLP.