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). | |
|---|---|---|---|---|---|---|
| Laboratory | MRC | 212 | Department Of Biotechnology | 8447 | ||
| Ladies Club | Ladies Club | 9428 | ||||
| Lakshman Neelakantan | Faculty | NAC1 | 145 | New Academic Complex | 4786 | nlaksman |
| Lakshmana Rao C | Faculty, Applied Mechanics | ASE | 159 | Aerospace Engg. Building | 4059 | lakshman |
| Lakshmi Bala S | Faculty, Physics | HSB | 315 | Department of Humanities and Social Sciences Block | 4869 | slbala |
| Lakshmi Ganapathy | Faculty, Physics | HSB | 253 | Department of Humanities and Social Sciences Block | 4839 | klganapathi |
| Lakshmi Narasamma | Faculty, Electrical Engineering | ESB | 349 | Electrical Sciences Block | 4462 | lakshmin |
| Lakshmi Priya | Faculty, Civil Engineering | STR | 303 | Structural Engineering Laboratory | 4319 | lakshmipriya |
| Laser Cooling Lab | HSB | 112 | Department of Humanities and Social Sciences Block | 5865 | ||
| Laser Diagnostics Lab | NCCRD | 4 | National Centre for Combustion Research and Development | 9893 | ||
| Laser Velocimetry & Flourescence Lab | FMB | 107 | Fluid Mechanics Building | 5076 | ||
| Lata Dyaram | DOMS | 411 | Department of Management Studies | 4567 | lata.dyaram | |
| Latha Venkitachalam, Executive Director - IITMAA | OHM | 109 | Office of Hostel Management | 8391 | ||
| Lawrance Gray Kumar | Sports Complex | Sports Complex | 8524 | lawrancegray | ||
| Lelitha Devi V | Faculty, Civil Engineering | BSB | 231 | Building Science Block | 4291 | lelitha |
| Library | MSB | Mechanical Sciences Block | 5155 | |||
| Library | NAC1 | 524 | New Academic Complex | 5601 | ||
| Library | DOE | 216 | Department of Ocean Engineering | 5808 | ||
| Library Lift | Library | Central Library | 5964 | |||
| Lift | BT | Department Of Biotechnology | 5107 |