Best way to release from project dont suggest resign another tips please share

Drop an official email to your manager asking for release. There are obvious chances that they will ignore it first few days but you have to keep following up on the same email. This is done to ensure that they do not give you false promises and everything is on record. Next step is to slowly slowly stop working. If they ask you about what has happened to your productivity, just tell them that this is the best you can do.
You have to fight a lot to get release

Abscond