How do i find the ADVISER menu(Accounting -> Adviser -> Chart of Accounts). I am not able to find it.

I am using Odoo 8 now

Hi Nilim. On version 8 you have : Accounting -> Configuration -> Accounts -> Accounts. Please keep in mind that you can define a Company that accounts belong to. So for multiple companies you will assign different accounts (CoA).

In case of multiple companies what is the best way to assign Accounts(CoA)

In case of multiple companies, the best way to assign CoA is to import CoA.You can define different compannies for CoA in the spreadsheet that you will import.

Thnks Dovydas