The Tamil Nadu government on Wednesday, December 24, 2025, announced promotions for IAS officers. Seven officers from the 1995 batch will move up to the Chief Secretary grade from January 1, 2026. These include M.A. Siddique, Managing Director of Chennai Metro Rail Limited; R. Jaya, Commissioner of Economics and Statistics; P. Senthilkumar, Secretary of Health and Family Welfare; Sandhya Venugopal Sharma, Chairperson of Tamil Nadu Industries Development Corporation; T. Udhayachandran, Secretary of Finance; Hitesh Kumar S. Makwana, Surveyor General of India; and B. Chandra Mohan, Secretary of School Education. Additionally, six IAS officers from the 2002 batch have been promoted to the Principal Secretary grade starting January 1, 2026. These officers are Archana Patnaik, Chief Electoral Officer; Sigy Thomas Vaidhyan, Commissioner of Disaster Management; C. Samayamoorthy, Secretary of Human Resources Management; M.S. Shanmugam, Secretary - II to Chief Minister; Reeta Harish Thakkar, Secretary of Public and Rehabilitation; and Jayashree Muralidharan, Secretary of Social Welfare and Women Empowerment. These promotions were officially ordered by the State government and mark a significant career advancement for these senior IAS officers.