Duniya kay Rakhwalay in Darbari is a Rafi masterpiece and Nashenas fails to do justice here.
The real name of Dr. Nashenas is Sadiq Fitrat. He is an Afghan singer I bought his 45 rpm records in the 60s. He was a very handsome man who sang on the Kabul radio under the fictitious name of Nashenas to escape the wrath and anger of his father. After the Russian invasion, he came to Pakistan, He had his classical music training in India.
Here is his Kalam-e-Iqbal (Surat Na parastum) with lyrics: