A window or light structure set in the roof of a building to let in light.
रोशनी
English Usage: She installed a roof light to brighten the dark hallway.
Hindi Usage: उसने अंधेरे हॉलवे को रोशन करने के लिए छत की रोशनी लगाई।
chat ki roshni, chat ki roshnee, chhat ki roshni, chhat ki roshnee, chatt ki roshni