GST Tax default issue on Debit Memo in Payables

Dear All,

During the Debit memo creation process i.e. we returned the material and based on the setup, system automatically generated Debit memo in payables. However, when debit memo is validated, GST Tax did not calculate in debit memo. In India tax details form, i can see the tax defaulted from return transaction but in below invoice form, i could not get it. So, please suggest.