After finishing college he moved to T. Nagar in the 1930s. He became friends with his neighbours V.Swaminatha Sharma who was working in Thiru. Vi. Ka's weekly magazine Navasakthi and the noted Tamil writer Kalki Krishnamurthy. With their encouragement he wrote his first short story titled Shantha Seelan. Impressed with his work, Kalki published his short stories like Kannammavin Kadhal, Adhirshtam in Ananda Vikatan. Encouraged by this success Sandilyan started learning the Tamil language formally from a Tamil Pandit named Thirukannapuram Srinivachariar. He started writing Tamil short stories in the Tamil Weekly Sudesamithran and also worked as a reporter in Sudesamithran from 1935 to 1942. Later he became a sub-editor at the English daily newspaperHindustan Times.
During his time at the Hindustan Times he became friends with B N Reddy of Vijaya Studios and Chittor V. Nagaiah. This bought him into the world of films. He co-wrote the screenplays of films like Swarga Seema and En Veedu. He later wrote about his film world experiences in his book Cinema Valarndha Kadhai. Later he also produced a documentary titled "Birth of a Newspaper".
Novels
After his stint at the Hindustan Times he returned to work at Sudesamithran and started writing full-length novels. One of his first works was a self-published political novel called Balathkaaram. He also started publishing in other magazines like Amudhasurabi. Paalaivanathu pushpam and Sandha deepam were his earliest historical novels. Sandilyan's most famous novels were serialised in Kumudam, a weekly Tamil magazine and was instrumental in increasing the circulation to a greater extent. He was one of the very few Tamil writers to get a monthly salary from Kumudam for his novels. After leaving Kumudam, he unsuccessfully ran a weekly magazine called Kamalam. His historical novels were published in book form by Vanadhi Padhippagam and became best sellers. As of 2009, many of them still remain in print, four decades after being first published. Kamil Zvelebil once called him as the "fourth most popular Tamil Writer".
Nationalization Controversy
In 2009, The Tamil Nadu Government announced its intention to nationalise Sandilyan's works and provide compensation to his legal heirs. This caused criticism from the legal heirs of Sundara Ramasami and Kannadasan. The Government soon retracted its position saying that the offer was optional and that it would force those who did not want to lose royalty. Sandilyan's legal heirs declined the Government's offer to nationalise and provide solatium.
Chithranjani:Chithranjani was set in the later part of the 1st century A.D. during the reign of Gautamiputra Satakarni. The story revolves around Gautamiputra Satakarni's efforts to check the invasion of Western Kshatrapa's Mahakshatrapa Chashtana.
Ilaya Rani
Indira Kumari
Jala Deepam – III parts
Jala Mohini
Jeeva Boomi
Kadal Rani
Kadal Vendhan
Madhahaviyin Manam
Malai Arasi
Malai Vasal
Mangaladevi
Manjal aaru
Manmalar : It is the story of Mewar king Rana Pratap who consistently defied the authority of Akbar.