Technically speaking you are not considered passed in Air Nav and Radio Aids until you pass the oral as well
The validity of ATPL papers is taken from the day the result is published
So going by that logic for Air Nav and Radio Aids the validity should be counted from the date the oral exam results are published because only when you pass the orals are you considered passed
Disclaimer : The above is my own interpretation of the rules . The DGCA officer issuing the ATPL license can have his / her own method for interpreting the rules which can considerably vary from my explanation
As you know the DGCA is always right
