Q: When a woman performs umrah, should she perform salaat behind the imaam or individually?
A: If you are asking whether she should attend the haram for jamaat salaah, then the answer is no. That is not permissible. She should offer her salaah in her room.
If you are referring to the time when she is busy with tawaaf and jamaat starts, then if she can join a jamaat of other ladies and follow the Imam, then that will be permissible. Otherwise she should make her salaah individually in one corner of the haram.
And Allah knows best
Mufti Siraj Desai