Hello @sarwath ,
The NVIC detailed information is provided by ARM in the Reference Manual.
ARM®v7-M Architecture Reference Manual
https://developer.arm.com/documentation/ddi0403/latest
Please refer to S32K1xx_DMA_Interrupt_mapping.xlsx file (rev1.3 and older, this is a reported rev.14 issue) that is attached to the RM.
Please note that you need to open the pdf file using Acrobat Reader in order to see the excel files included in the RM.
Best Regards!