Select the correct synonym for the given Hindi word: आकाश (Aakash)

Comprehension: Read the given passage and answer the question that follows. The sun began to set and slowly melted saffron flowed into the glaciers. The snow started turning into red lotus flowers, and the valleys turned deep yellow. When it grew dark, we got up to wash our hands and face and drink tea. Everyone was quiet, lost in thought, as if something had been taken from them, or perhaps as if everyone had found something that they were absorbed in preserving within themselves. In a little while the moon came out and we went out again... this time everything was peaceful. As if everything was sleeping. I pulled a lounge chair a little apart and sat down. Why has my mind become so lacking in imagination? Looking at this very Himalaya, who hasn't written what all, and here is my mind that far from a poem, it doesn't even know a line or a single word. But no, all this seems so small in front of this snow emperor. But gradually I felt that there were clouds inside the mind as well that were clearing away. Something was emerging that was of the nature of these pictures, trying to rise to the same height so that it could meet them at their level. It felt as if the Himalayas had climbed up like an elder brother, and seeing me, the younger brother, standing below, frustrated and embarrassed, was encouraging me a little, giving a affectionate challenge - Do you have courage? Will you rise high? Which of the following words is NOT a synonym for 'Samrat' (Emperor)?