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 feed back about the firm, and I declined their offer citing urgent family reasons. Now the owner is pestering me to cough up the CTC amount equivalent to notice period. I did not even join the company, 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?