Yes lets just hope they are kept safe. Whilst it must be hard for them to leave their familiar day to day lives, I think they must stay in Delhi until they are guaranteed a safe return to their community.
If these courts are illegal I think India must do more to ensure that is the case, if necessary, punitive sentences for perpetrators who take it upon themselves to dole out such punishments to make others think twice. India has come so far so quickly, but instances like this, illustrate they have a long way to go in some areas.
To think that London, or anywhere else for that matter, does not belong to any one demographic