Sujatha (May 3, 1935 – February 27, 2008) was the pseudonym of the Tamil writer S. Rangarajan, author of over 100 novels, 250 short stories, ten books on science, ten stage plays, and a slim volume of poems. He was one of the most popular writers in Tamil literature, and a regular contributor to topical columns in Tamil periodicals such as Ananda Vikatan, Kumudam and Kalki. He had a wide readership, and served for a brief period as the editor of Kumudam, and has also written screenplays and dialogues for several Tamil movies.
Penning with his wife's name, Sujatha's Tamil literary career spanned more than four decades. An engineer by profession, he was proficient in the language of technology. Widely read and knowledgeable, he presented his knowledge in simple Tamil.
His works stood out during a time when Tamil writing was dominated by social/family dramas and historical novels. His identification with the masses, and his uncanny adoption of their way of talking, behavior, mindset and slang, helped make him popular across multiple demographic segments.
His popularization of technology was one of his greatest contributions - starting with his Silicon Chip writing in Dinamani Kadhir and Yen, Yedharku, Eppadi in Junior Vikatan. At one point, his writing was appearing in numerous Tamil weeklies and journals simultaneously, including Ananda Vikatan, Kumudam, Kungumam, Kalki and Dhinamani Kadhir. Later he contributed as script/screenplay writer for several Tamil movies. His notable movies included Vikram,Thiruda Thiruda, Boys and Sivaji. Most of his early novels/stories were made as movies, including Priya, Gaytri, Karaiyellam Senbagapoo and Anandha Thandavam, among others.
In addition to the novels, stories, essays he wrote, he helped introduce haiku poetry to Tamil audiences. Brought up in Srirangam, Trichy, and having spent most of the later part of life in Bangalore, he described both places vividly in his various writings. Among his popular novels are Pirivom Sandhipom (not related to the recent movie of the same name), Rathham Ore Niram, and Kolaiyudhir Kaalam.
He also immortalized Ganesh-Vasanth - an imaginary advocate pair serving as the main characters in most of his detective stories. Ganesh is a level-headed, senior advocate and Vasanth is his flirtatious junior advocate. The Ganesh-Vasanth pair was based on James Hadley Chase's characters, Vic Malloy and his sidekick.
In his later days he restricted his writing to essays such as Katradhum-Petradhum. He began to spend more time reading, especially old rare Tamil writings and writings on the latest developments in information technology and computing.