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Telephone Directory

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)

The full format of the email is [Email]@iitm.ac.in

List of Intercom Extensions

NAME ROLE BUILDING ROOM NO. BUILDING NAME OFFICE EXTN (PABX). EMAIL
MDS Research Scholar Room 1 MDS 304 Machine Design Section 5691
MDS Research Scholar Room 2 MDS 306 Machine Design Section 5692
MDS Research Scholar Room 3 MDS 403 Machine Design Section 5693
MDS Research Scholars Room MDS 302 Machine Design Section 5533
MDS Seminar Hall MDS Machine Design Section 5694
MDS Workshop MDS Machine Design Section 5698
Measurement Testing Room ESB 317 Electrical Sciences Block 5437
Measurement UG Lab ESB 306 Electrical Sciences Block 5438
Measurements Lab MRC 211 Mauritus Research Council 5912
Measurements Office ESB 310 Electrical Sciences Block 5439
Mechanical Engg Fax MSB 210 Mechanical Sciences Block 4652
Mechanical Engg HOD Department Head, Mechanical Engineering MSB 210 Mechanical Sciences Block 4651 mehead
Mechanical Engg Office MSB 210 Mechanical Sciences Block 4650 meoffice
Mechanical Engg Stores MSB 218 Mechanical Sciences Block 5651
Mechanical Measurement Room MSB 332 Mechanical Sciences Block 5699
Mechanical Optimization Lab MDS 115 Machine Design Section 5742
Mechanical Performance of Civil Engg Materials BSB 101 Building Science Block 5287
Mechanical Tseting Lab MSB 105 Mechanical Sciences Block 5764
Mechanics of Time Dependent Lab MDS 101 Machine Design Section 5647
Mechatronics MSB 342 Mechanical Sciences Block 5701