Public utilities in Naharlagun are managed by state government departments and the local municipal corporation.
* **Electricity**: Power is supplied and managed by the **Department of Power, Government of Arunachal Pradesh**. The region relies heavily on hydroelectric power generated within the state, though seasonal fluctuations can occasionally impact distribution. * **Water Supply**: Managed by the **Public Health Engineering Department (PHED)**. Water is primarily sourced from local rivers (like the Dikrong) and hill streams, treated, and distributed to residential areas. * **Waste Management**: The **Itanagar Municipal Corporation (IMC)** oversees solid waste management for both Itanagar and Naharlagun. Initiatives to improve door-to-door collection and segregate waste are ongoing, addressing the challenges of waste disposal in hilly terrains. * **Telecommunications & Internet**: Bharat Sanchar Nigam Limited (BSNL) provides foundational landline and broadband services, alongside robust private network coverage from Jio, Airtel, and Vodafone Idea (Vi).