An Indian Administrative Service (IAS) official, B Kalyan Chakravarthy has held various positions in Government of Assam, Government of Telangana and Government of India. He is currently serving as Additional Chief Secretary to Government of Assam. An expert in environmental issues, he has represented Government of Telangana at global climate conferences, including COP21 in Paris, COP23 in Bonn, and COP24 in Poland. As Director General, Environment Protection Training and Research Institute, he has significantly contributed towards developing it into a world class institute. During his association with Telangana State Pollution Control Board, he was instrumental in implementing green belt coverage in apartments, studies to improve biomedical waste management, strict implementation of pollution control parameters by industries, etc. He has also guided core technical teams in preparation of specialised reports on environment issues and in conducting international training programmes for government officers.