He began to spend more time reading, especially old rare Tamil writings and writings on the latest developments in information technology and computing. In his later days he restricted his writing to essays such as Katradhum-Petradhum. The Ganesh-Vasanth pair was based on James Hadley Chase's characters, Vic Malloy and his sidekick. Ganesh is a level-headed, senior advocate and Vasanth is his flirtatious junior advocate. He also immortalized Ganesh-Vasanth - an imaginary advocate pair serving as the main characters in most of his detective stories.
Among his popular novels are Pirivom Sandhipom (not related to the recent movie of the same name), Rathham Ore Niram, and Kolaiyudhir Kaalam. 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. In addition to the novels, stories, essays he wrote, he helped introduce haiku poetry to Tamil audiences.
Most of his early novels/stories were made as movies, including Priya, Gaytri, Karaiyellam Senbagapoo and Anandha Thandavam, among others. His notable movies included Vikram,Thiruda Thiruda, Boys and Sivaji. Later he contributed as script/screenplay writer for several Tamil movies. At one point, his writing was appearing in numerous Tamil weeklies and journals simultaneously, including Ananda Vikatan, Kumudam, Kungumam, Kalki and Dhinamani Kadhir. 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. 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 works stood out during a time when Tamil writing was dominated by social/family dramas and historical novels. His writings includes over 120 short stories, 10 novelettes, five novels and three historical romances. He derived his pen name from the suffixes of his wife name Kalyani and his name Krishnamurthy in Tamil form as Kalki. Widely read and knowledgeable, he presented his knowledge in simple Tamil. Kalki Krishnamurthy is a novelist and also famous for short story writer. An engineer by profession, he was proficient in the language of technology. Penning with his wife's name, Sujatha's Tamil literary career spanned more than four decades.
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. 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. Rangarajan, author of over 100 novels, 250 short stories, ten books on science, ten stage plays, and a slim volume of poems. Sujatha (– February 27, 2008) was the pseudonym of the Tamil writer S.