How is it to gather for khatme khwajgaan in the Musjid?

Answer

It has no resemblance with the Sunnah. It is not permissible to stage this practice in the Musjid thereby conveying the impression to the ignorant and unwary that it is a Sunnah practice of ibaadat. Some Mashaaikh have originated it as a spiritual exercise. It is permissible in privacy under the supervision of the shaikh. But this practice has now become a hardcore bid'ah which must be shunned.