I had accepted the offer of a startup company through email. I did not send any signed copy of the offer letter. But after 20 days, I got some negative feedback about the firm, and I declined their offer, citing urgent family reasons. Now the owner is pressuring me to pay the CTC amount equivalent to the notice period. I did not even join the company; the joining date was more than a month away when I declined their offer. Can I be sued in this case? Should I seek legal advice?