Need help in form 108

You may fill your private bank account number in the columm provided,there will not be any problem.

my questions are: 1) what to write in "details of work undertaken"? 2) how much leave can i show? 3) i took payemt through a/c payee checks regularly, and that includes the period for which i am going to show as exam leave. SO what to do? Do i equired to mention the months in which my a/c is credited but i am showing a leve?? PLEASE GUIDE ME IN THIS REGARD.