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). | |
|---|---|---|---|---|---|---|
| Research Scholar Room 6 | NAC1 | 636 | New Academic Complex | 5585 | ||
| Research Scholar Room 7 | NAC1 | 622 | New Academic Complex | 5586 | ||
| Research Scholar Room 8 | HSB | 242 | Department of Humanities and Social Sciences Block | 5587 | ||
| Research Scholar Room 9 | HSB | 256 | Department of Humanities and Social Sciences Block | 5588 | ||
| Research Scholars Bay | BSB | 331 | Building Science Block | 5377 | ||
| Research Scholars Lab | NAC1 | 419 | New Academic Complex | 5095 | ||
| Research Scholars Lab | CYB | 207 | Department of Chemical Engineering | 5187 | ||
| Research Scholars Lab | CYB | 205 | Department of Chemical Engineering | 5194 | ||
| Research Scholars Lab | KCL | 206 | Department of Chemistry | 5236 | ||
| Research Scholars Lab | HSB | 332 | Department of Humanities and Social Sciences Block | 5509 | ||
| Research Scholars Room | ASE | 115 | Aerospace Engg. Building | 5021 | ||
| Research Scholars Room | CTC | Composite Technology Center | 5014 | |||
| Research Scholars Room | NAC1 | 424 | New Academic Complex | 9821 | ||
| Research Scholars Room | NAC1 | 427 | New Academic Complex | 9822 | ||
| Research Scholars Room | NAC1 | 430 | New Academic Complex | 9823 | ||
| Research Scholars Room | NAC1 | 431 | New Academic Complex | 9824 | ||
| Research Scholars Room | NAC1 | 436 | New Academic Complex | 9826 | ||
| Research Scholars Room | NAC1 | 423 | New Academic Complex | 9825 | ||
| Research Scholars Room | BSB | 238 | Building Science Block | 5300 | ||
| Research Scholars Room | BSB | 126 | Building Science Block | 5304 |