I am working in XXX for the past 2 years and 11 months. I got a better job, and I mailed my resignation letter on 26th September, asking to be released by 25th October, keeping the XXX policy of one-month notice period in mind. However, my project gave me 15th November as the release date. Even my HR is telling me he can release me only on the date given by my project. I'm fighting with one person or another every day for my release date to be changed. My date of joining in the new company is 28th October, and they told me they won't be able to wait till 15th November and may cancel my call letter. I really don't know what to do, and I feel my future career is in a big question mark. I seek your advice and help in this issue.