What is the status [Makrooh,Rejectable or Permissible] to say prayers with naked head for Imam and Muqtadi What is the status to read Quran with naked head for Imam & Muqtadi What is the status to say prayer with Amama [turban].

To pray without a cap is undesirable and to read quran in the same manner is disrespectful. If one wants to read some verses related to cure then there is no problem. Tying a turban on one’s head is sunnah besides that it’s not linked with the prayer. It’s not amongst the sunnah of the prayers.
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