Hi Murali
This will not work as I dont want to restrict few users.
What I want is for organisational purpose , any entry on the last day of the month and days thereafter should post only to last day of month.
although the both the periods are open but after 30th January system should not allow posting for the dates 1-30th January and should only post in 31st January and February.
For example:-
From 31st Jan till the time period for January is open system should only allow the posting date 31st January and no other date in January.
Similary for all subsequent months