Telephone Extension and SIP Trunk Direct Numbers
| Name | Extn / Direct No |
| Reception | 200 / 24491800 |
| Director | 201 / 24491801 |
| Ms Sreeda (AO) | 202 / 24491802 |
| Director's Sec | 203 / 24491803 |
| Mr Akash | 216 |
| Mr Deepak S | 207 / 24491807 |
| Mr Vivek Dubey | 208 / 24491808 |
| Ms. Nethravathi | 209 / 24491809 |
| Mr Jayaram M | 210 / 24491810 |
| Ms Usha Harini | 211 |
| Mr Abhilash | 212 / 24491812 |
| Ms Roopa | 214 |
| Ms Sandhya D Hombal | 215 / 24491815 |
| Dr Nayana J / Mr. M G Narayan (MGN) | 293 |
| Mr Venktesh K | 217 |
| Mr Tharakanath | 218 / 24491818 |
| Ms Ashitha | 219 / 24491819 |
| Ms Vatsala | 220 |
| Mr Jayaprakash V. K. | 221 |
| Lab 8 / Indresh / Panibushan | 248 |
| Mr Girish | 200 |
| Incubation 1 | 235 / 236 |
| Incubation 2 | 239 / 234 |
| Incubation 3 | 237 |
| Incubation 4 | |
| Incubation 5 | 240 / 241 |
| Incubation 6 | 242 / 243 |
| Fab lab | 222 |
| Energy lab | 224 |
| TSAMRC lab | 226 |
| Dr Sanjay K Varshney | 228 / 24491825 |
| Greenhouse | 229 |
| Micro/Spectroscopy Lab MS Lab | 230 |
| Micro/Spectroscopy Lab MS Lab | 231 |
| HRTEM Lab | 232 |
| HRTEM Lab | 233 |
| XT Lab (Lab 7) / Shashi | 246 |
| Main gate Security | 250 |
| Doctor/Clinic | 296 |
| Canteen | 252 |
| Inward room/ Mr. Raghavendra | 253 |
| Sumedha A | 290 |
| Sumedha B | 289 |
| Sumedha C | 288 |
| Sumedha D | 287 |
| Sumedha E | 286 |
| Dr Subash C K | 254 / 24491804 |
| Dr Pralay K Santra | 256 / 24491805 |
| Dr H S S R Matte | 257 / 24491811 |
| Dr Matte lab | 258 |
| Dr P Viswanath | 259 / 24491813 |
| Dr P Viswanath Lab (Students) | 260 |
| Dr Kavitha Pandey | 261 / 24491814 |
| Dr Kavitha lab | 262 |
| Dr C V Yelamaggad | 263 / 24491816 |
| Dr Yelamaggad Lab | 264 |
| Dr D S Shankar Rao | 265 / 24491817 |
| Dr Krishna Prasad | 267 / 24491820 |
| Dr Krishna Prasad Lab | 268 |
| Dr Geetha G Nair | 269 / 24491821 |
| Dr Neena S John | 270 / 24491822 |
| Dr Neena Lab (Students) | 271 |
| Dr Angappane S | 272 / 24491823 |
| Dr Angappane lab | 273 |
| Dr Ashutosh K Singh | 274 / 24491824 |
| Synthesis lab (Physics) | 275 |
| Gangaraj / Housekeeping container | 266 |
| Prof. Kulkarni | 277 |
| Prof. Kulkarni's Sec | 278 |
| Security Gate II | 291 |
| IDC JNCASR Security Office |
292 |
| Library | 293 |
| R&D Sitting Place | 294 |
| Meeting Room | 295 |
| Hemavathi Hostel Security | 205 |
Telephone nos. 080-29630090 and 080-29630089 SIP Trunk no. 080- 24491800