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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
Technical Staff Room MDS 214 Machine Design Section 5517
Telephne Exchange Tele Exch Telephone Exchange 8142
Telephone Complaints Tele Exch Telephone Exchange 8141 telephones
Tenet Design Lab ESB 328 Electrical Sciences Block 5473
Tenet Office ESB 331 Electrical Sciences Block 5475
Tenet Office 2 ESB 330 Electrical Sciences Block 5408
Tenet Operation Lab FOSAPP Electrical Sciences Block 5476
Testing Lab CEC Central Electronics Center 5949
Texture and Microstructure Lab NAC1 105 New Academic Complex 5770
TGA/DSC Lab SAIF 23 Sophisticated Analytical Instruments Facility 4933
Thamban Nair M Faculty, Mathematics NAC1 551 New Academic Complex 4610 mtnair
Tharun K. Chandrayadula Faculty, Ocean Engineering DOE 109 Department of Ocean Engineering 4808 tkchandr
The Uncertainty Lab MSB 227 Mechanical Sciences Block 5071
Thenmozhi M Faculty, Management Studies DOMS 203 Department of Management Studies 4562 mtm
Thenral V HSP 126 IITM Institute Hospital 8307 thendral
Theoritical Biology & Protein Bio Info Lab BT 516 Department Of Biotechnology 5128
Theory KMS Lab CYB 108 Department of Chemical Engineering 5209
Theory Lab CYB 223 Department of Chemical Engineering 5240
Thermal Physics & Machines Teaching Lab HSB 328 Department of Humanities and Social Sciences Block 5885
Thermal Power Lab NCCRD National Centre for Combustion Research and Development 9854