Gstn within state but supply outside the state(gst allocation in Gstr_1)

siva andhavarapu (ca final) (388 Points)

25 January 2022  
Mr.A had registered gstn in kerala state but he has a construction project at tamilnadu.Mr.B having gstn in kerala state had supplied and delivered materials to tamilnadu and generated invoice with Igst(place of supply rule).While filing gstr1,Mr.B is facing an issue with the gst allocation.If Mr.B gives Gstn of Mr.A,gst site is automatically allocating gst into cgst and sgst.But as per place of supply rule its igst.How to overcome this while filing the Gstr1?