I resigned in November but was asked to stay back another 6 weeks. Now they are making me leave at end of December. What can I do?

If you have agreed to stay until the end of this week it would be best to honour that commitment. Most employees do not need to give 6 weeks of resignation unless their contract specifically says so. It is generally expected that employees give whatever notice that would be reasonable to allow the company to transition your work to someone else. In the circumstances, since December is almost over, it would be best to stay at your job. If you have any further questions, please contact us for a consultation.