The OCTAGON - Computer Center is the sterling hallmark of this campus. This center serves the campus-wide LAN in close association with the user departments. This LAN caters to totally 6000 users across the campus (1600 users at the same time using Wired connection and the remaining users through Wireless) and has a 10 Gbps fiber optic backbone. It also acts as a resource centre to supplement classroom instructions with laboratory sessions.

The OCTAGON & Annex building accommodates the central computing facilities, it has a server room with 25 high-end servers and there are 7 laboratories, 5 labs in Octagon building and 2 labs in the Annex building with totally 400 high-end computers.It has a Printer room equipped with a high-speed A4 (Mono) and two A3 Network Laser Printers (Mono and Color) which can print up to 60 pages per minute (PPM); a Library for software and manuals; Conference and Seminar facilities; a CAD/CAM Centre with 22 high-end workstations and an in-house maintenance facilities.

The centre is maintained by the Computer Support Group (CSG).

Octagon is kept open 24 hours a day, 7 days a week, throughout the year, also has centralized 2 x 60 kVA redundant Uninterrupted Power Supply with 200 kVA standby Power Generators and Central Air Conditioning.

NITT is connected to the Internet via 58 Mbps (1:1) leased line from Software Technology Park of India (STPi) and via 100 Mbps leased line from Bharat Sanchar Nigam Ltd (BSNL) under National Mission on Education through Information & Communication Technology (NME-ICT). Currently work is in progress for providing 1Gbps connectivity by National Informatics Centre (NIC) using Railnet as a part of National Knowledge Network (NKN)
Network security is provided through two UTM appliances with failover option (Sonic Wall NSA 8500) and two Email Security appliances (Sonic Wall ES8300). User authentication for browsing the Internet is linked with ADS.