Public utilities in Tawang are managed by state government departments, adapted to the challenges of a high-altitude, mountainous environment.
* **Electricity:** Supplied by the Department of Power, Government of Arunachal Pradesh. Due to heavy winter snowfalls, occasional power outages can occur, though the state is increasingly investing in localized mini-hydel (hydroelectric) projects to ensure reliable energy. * **Water:** Managed by the Public Health Engineering Department (PHED). Water is predominantly sourced from mountain streams and natural springs. * **Waste Management:** Handled by the Tawang Urban Development Department. The town has made notable strides in waste management, including strict regulations against single-use plastics to protect the fragile alpine ecosystem. * **Telecommunications:** BSNL, Airtel, and Jio provide cellular networks. Connectivity has improved significantly in recent years, though weather conditions can occasionally disrupt service.