Is placing cj links on the website which isn't added at web site settings under account settings against cj tos? Thanks.
no, but it does mean that in your reports you will not be able to differentiate between revenue from your different sites - assuming you have more than one!
It should not be a problem at all, as long as it is generating revenue for you. However, isn't it a good idea to know which site / blog is contributing more than other?