"Dinamani" is a Tamil daily newspaper published from 10 cities in India. It is the oldest Tamil newspaper in the country, and it is owned by The New Indian Express Group who established the paper in 1933 and brought out the first edition on September 11, 1934. The name "Dinamani" came up as the winner of a competition that the founder announced. T.S. Atchayalingam and S. Swaminathan won the prize money of 10 rupees for their entry.
"Dinamani" is printed and published from Chennai, Coimbatore, Vellore, Trichy, Madurai, Tirunelveli, Dharmapuri, Villupuram, Bangalore and New Delhi. The newspaper has four supplementary editions that cover different facets of news. "Kadhir," the Sunday supplementary, covers cinema, politics and interviews, while "Vellimani," the Friday supplementary, covers devotional news.
"Siruvarmani" and "Tamilmani" are supplementaries dedicated to children and Tamil literature, respectively. "Dinamani" also has a mobile application that has a readership running into thousands, as of 2015. In 2013, the Union government of India filed a defamation case against the newspaper on behalf of P. Chidambaram, the then Union Finance Minister. The paper reported that the minister influenced the income tax searches on the SRM group of educational institutions on June 18, 2013. The complaint described the allegations as baseless, resulting in a summons being issued to the publisher and editor of the newspaper.