Hi Jeevitha,
If you are using CMS transport system then you need to configure transport targets in SLD as below
DEV->QA and QA->PROD
But if you are using CTS+ transport system then you need to configure transport targets in SLD as Below.
DEV->QA and DEV->PROD
So in your production SLD the configuration should be like below
ECC_ND-> ECC_NQ
ECC_ND->ECC_P
Regards,
Praveen.