I have accepted a company's letter of appointment since I didn't have an offer and wanted to join the company. In the letter, they didn't mention the joining date but said that it would be conveyed later. They held a five-day induction program, which I attended, and on the fifth day, they told me to join the company from the next day. However, now I don't feel the company has a job role of my interest, and I don't want to join. Can the company take legal action against me as I haven't actually started the job yet? Also, it was stated in the letter that if I didn't complete my retention period (1 year), I would have to serve a notice period of 3 months or, if failing to do so, return the money equivalent to the last 3 months' salary, even though I have not joined the job yet.