I received an offer from a company, and I accepted it. They asked me to join in two days, but as I need to serve two months' notice, I said it was not possible. They then insisted that I attend their company event, which was scheduled after two days. I agreed to attend by explaining that I would only be able to join after two months. Subsequently, they had me sign a declaration stating that I am part of the event and confirming my commitment to join their company. The declaration also mentioned that they could take legal action against me if I did not join. Now, if I don't join, will they sue me? Please advise.