Hi Rahul, I believe this informations isn't publicly available.
At least I have never seen any documentations that would provide the maximum value that those limits can be set to.
Through here your best hope would probably be someone who has set this specific limit to a higher value in the past, they would be able to confirm what was used on their case.
But I think the best approach would be for you to open a case, they can probably confirm to you there the maximum value that this can be changed to.
------------------------------
Marcello Jabur
------------------------------