To reach IITM telephone extensions from outside, the caller has to dial prefix (044) 2257-xxxx, where xxxx is the PABX number
For residential PABX lines (wherever provided)
- Replace 8xxx with 9xxx
- Replace 4xxx with 6xxx
If residential line is not provided "Number Not Available" or Engaged Tone will be heard.
Board PABX No : IVRS (8000) / ASR (9000)
| NAME | ROLE | BUILDING | ROOM NO. | BUILDING NAME | OFFICE EXTN (PABX). | |
|---|---|---|---|---|---|---|
| 24x7 Nodes Electrical Complaints | Substation | Velachery Gate | 8185 | |||
| 2m wave cum current flume | DOE | 114 | Department of Ocean Engineering | 5833 | ||
| 3D imaging & Additive Mfg Lab | ED | 317 | Department of Engineering Design | 5643 | ||
| 4m Wave Flume | DOE | 116 | Department of Ocean Engineering | 5803 | ||
| 500 MHz Micro Imaging | MRI | Magnetic Resonance Imaging | 5921 | |||
| 500 MHz NMR | CYB | 122 | Department of Chemical Engineering | 5199 | ||
| 5G test bed-1 | CSD | 400 | Centre for Systems and Devices | 8961 | ||
| 5G test bed-2 | CSD | 400 | Centre for Systems and Devices | 8962 | ||
| Abdas Samad | Faculty, Ocean Engineering | DOE | 308 | Department of Ocean Engineering | 4826 | samad |
| Abhijit Choudhury | Faculty, Applied Mechanics | New FMB | 115 | Fluid Mechanics Building | 4074 | abhijit.choudhury |
| Abhijit P Deshpande | Faculty, Chemical Engineering | HSB | 151 | Department of Humanities and Social Sciences Block | 4169 | abhijit |
| Abhijit Sarkar | Faculty, Mechanical Engineering | MDS | 210 | Machine Design Section | 4723 | asarkar |
| Abhilash Sharma Somayajula | Faculty, Ocean Engineering | NAC1 | 354 | Department of Ocean Engineering | 4823 | abhilash |
| Abhishek Misra | Faculty, Physics | HSB | Department of Humanities and Social Sciences Block | 4859 | abhishek.misra | |
| Abhishek Sinha | Faculty, Electrical Engineering | ESB | 222-A | Electrical Sciences Block | 4410 | abhishek.sinha |
| AC Plant Room | CC | P.G. Senapathy Center for Computing Resource | 5988 | |||
| Academic Affairs Secretary | 8540 | |||||
| Academic Civil Maintenance | MSB | GF | Mechanical Sciences Block | 8188 | ||
| Academic Courses - Secretary | ADB | 4 | Central Administration Building | 8031 | dacoffice | |
| Academic Courses Office | ADB | 4 | Central Administration Building | 8032 |