Status of resignation in case of working for different companies

Hello Raluca,

I have recently decided to resign from my position from my company as I have completed 6 months duration and am on an unlimited visa.

My query is that the company that I am actually working for which I want to resign is not the same company that has provided me visa and contract.

And as per the law, I am required to serve at least 30 days of notice period and I don't want to be in a situation where I serve my notice period with my existing company but then they file a case against me later on via the other company that actually gave me visa and contract stating that I have not completed my 30 days notice period.

Can you please guide me on how to take this situation forward?

Regards,

A. M.