Complex sentence: Varma befriended Akkineni Nagarjuna, Akkineni Venkat, and Yarlagadda Surendra, and presented his script for "Raathri" to them.
Split into simpler sentences: Varma befriended Akkineni Nagarjuna, Akkineni Venkat, and Yarlagadda Surendra in the process. He developed and narrated the script of "Raathri" to them.