The Department of Telecommunications (DoT) is a government body in charge of formulating policies and regulations for the telecommunications sector in a country. It oversees the development and maintenance of communication networks, ensuring that services like mobile phones, internet, and broadcasting are accessible and efficient. DoT also manages the allocation of radio frequencies and licenses to service providers, ensuring fair competition and compliance with laws. It plays a crucial role in promoting technological advancements and improving infrastructure, which supports the growth of related industries such as information technology and media.