This is the Garam khana of the Hammam in the Red Fort.
Precious & Semi precious stone inlay used to grace this room once to create the effect of a garden.
Sir Syed Ahmad Khan says this room was perhaps never heated after Shah Jahan’s and Aurangzeb as 125 maunds of wood was just a morsel for heating it ( so much wood was needed)
I had visited it some years ago.