Dear Kavya,
Please read below which I extracted from immigration site :-
"Note: There can only be one invitation on an EOI at any time even if more than one visa subclass has been selected. For example if you have a current invitation to apply for a subclass 190 visa you cannot receive an invitation to apply for a subclass 189 visa. It is your responsibility to ensure that you understand the questions on the EOI form. If you are unsure about a question, read all available help text to ensure that you answer the questions as accurately as possible."
If I am not wrong you can get maximum two invitation for one EOI but you get second invitation only when first one expires, but you can't two invitation at the same time.
My only confusion is whether we will get second invitation for 190 visa or not in case we do not accept that or we need to go through the state nomination process again and deposit 330 aud (NSW).
Can anyone give some clarification on this?