His classmates were Ramanadha Sastry, Aravindan, and Sivaprakasan.
Ramanadha Sastry became a Rameswaram temple priest.
Aravindan started a company organising transportation for pilgrims.
The Southern Railways hired Sivaprakasan as a catering contractor.
Final answer:
Hence, Abdul Kalam’s school friends were Ramanadha Sastry, Aravindan, and Sivaprakasan.