Breach of contract

MY wife is Thai chef originally belongs to Thailand. She has been working with renowned restaurant in New Delhi since 14 years. I have started an online home catering business of thai food since 2 years. Few months back my company had participate a food festival. My wife helped me in setting up of stall and display of food in the festival. During fest organizer clicked photo of my wife at the stall which they posted on their facebook page. Somehow my wife company found her photo. They send her show cause notice which says that she had directly participated in food fest and helped her husband. They did not give any appropriate time to reply. Within hour of discussion with top official of company they kind of forced her to sign reply letter from them. She signed reply letter dated same day which says that she has helped her husband business and apologize. Mind it she is a Thai national and she is not well versed in English language. Despite show cause notice was written in technical English no appropriate time given her in written to think, understand or in case require help from lawyers. They suspend her from working without any suspension letter since 15 days. Now they are threatening her of legal action as she breach contract. Till now company did not terminate her nor accepts her resignation. What action we can take from our side?