Dear P,
You need not to worry, as you have passed two months in your present organisation, if you have not been assigned any work, you try to understand the work culture of the organisation, try to study the organisation and people of organisation, make a suitable record, more ever you can approach your senior for work, if you are from admin department, then for time being you can look after another department also, which in future will be quite helpful for your admin department like purchase, servicing department, Accounts, HR, etc.
See in the every new organisation in the begining you will feel uncomfortable situation but slowly slowly try to understand the organisation some in near future there may some big plan of the company, that is why company might have hired you. there may be some specific purpose behind hiring you, othrewise company simply does not pay with out any work. Senior personnels are always aware of the man power best utilisation.
Thankyou