The contestant with the trophy at the end of the task will be nominated for the rest of the season.
Now, is it up to BB who he wants to nominate? He can stop the task any moment just like the chor police and captaincy task. There's no set criteria/time. Which is absurd.
Anyways, I was thinking, since it's all about handing over the trophy, why not the smart ones go and hide somewhere? đ