Trending @Infosys; Project related query

So suddenly out of the blue I got a call for HR that my current project decided to put me on bench and last date is 1 week from now. I got shocked and told Hr that this was new from me and didn't get any notice from my manager. He told me your manager was the one who took this decision and he is calling me for project allocation. I provided him all the skill related info and that day only I got accepted to a different project. Now my current project manager is pushing me to complete all my tasks which atleast would have taken 1 month to complete. Honestly it's not possible to complete all the task within one week. So can my manager do something once I am starting working in the next project from next week?