The narrator thought so.
The voice referred to here is that of the girl who was travelling with the narrator in the same compartment.
The blind narrator on his journey met a girl whom he started to like from the very beginning. Since the short train journey did not give him enough time to draw a mental image of the girl, he simply used his ears. The narrator considered the voice of the girl to be special as her voice reminded him of the sparkle of a mountain stream. He grew so fond of her voice that he was ready to sit with her for any length of time, just to listen to her talking.
“She would forget our brief encounter;”—Who said this and about whom? What is the brief encounter referred to here? Why did the speaker think so?
The narrator said this about the girl who was travelling with him in the same compartment from Rohana to Saharanpur.
The lively, light-hearted conversation between the narrator and the girl about the beauty of the hills of Mussoorie in October and about the view of the landscape from the train’s window between Rohana and Saharanpur has been described as the brief encounter.
When the narrator informed the girl that her station will arrive soon, she felt quite relieved. On the contrary, the narrator was ready to sit in the compartment for any length of time just to hear the girl talking. The journey that was cherished by him was of little importance to her. This different emotion made the narrator feel that she would forget their brief encounter.