Its an adjusting event
Proposed dividend do not qualify to be a adjusting event as per the definition in AS4
However, AS 4 clearly specifies that proposed dividend should be treated as a adjusting event
Thus although proposed dividend do not qualify as per the definition of adjusting event but it is an adjusting event.
As4 has 2 exceptions where non-adjusting is also treated as adjusting-
1-when going concern concept is violated.
2-in case of proposed divid.
So it is adjusting.