Dass started his career as an assistant to
Thanjai N. Ramaiah Dass in 1955 and assisted in writing the dialogues for the film called
Naattiya Thara. He wrote his debut film as
Vaazha Vaitha Deivam (1959) produced by
Sandow M. M. A. Chinnappa Thevar. Then, he wrote next film for Sivaji Ganesan's
Pasamalar (1961) and continued to write for the thespian in 28 films. When he wrote Pasamalar, Das was 28 years, Sivji Ganesan was 32 and Savitri was 24. He wrote for nearly the same number of
M. G. Ramachandran too (including a few that were not released). Dass worked with many top class directors of yesteryears, like
A. Bhimsingh,
A. C. Tirulokchandar,
M. A. Thirumugam and many others. He was associate director under Tirulokchandar and Dever films. He has written stage plays like
Thirisoolam and
Jenma Thandanai. In June 2022, Aaroor Dass received the Kalaignar Kalaithurai Vithagar Award from the government of Tamil Nadu. ==Personal life and death==