His contribution to Tamil literature world will last forever. His sceintific fictions and contributions to Tamil language are simply great. Apart from story writing, he used to write screenplay for Tamil cinemas. Because of his efforts, many Tamil DTP Software programmes came to limelight. Further to literature world, his contributions towards Electronic Voting Machines were excellent. While he started his writing career, he had written in his original name "Ra Ki Rangarajan". There was another senior writer in the same name. So he used his wife name and started writing in the name Sujatha Rangarajan. But in kumudam, it was published as Sujatha .
