Room No 105, 1st Floor, Sanchar Bhawan, New Delhi - 110001
+91-11-23739191
+91-11-23372169
Room No 102, 1st Floor, Sanchar Bhawan, New Delhi - 110001
+91-11-23372414/565
+91-11-23372277
Ministry of Defence, Room No. 137, South Block,
New Delhi - 110001
+91-11-23011519
+91-11-23018216
IInd Floor, Sanchar Bhawan, New Delhi - 110001
+91-11-23719898
+91-11-23711514
IInd Floor Sanchar Bhawan, New Delhi - 110001
+91-11-23372307
+91-11-23755172
IInd Floor Sanchar Bhawan, New Delhi - 110001
+91-11-23716161
+91-11-23715762
Electronics Niketan 6 CGO Complex, New Delhi
110003
+91-11-24364041
+91-11-24363134
B-148, Barakhamba, Statesman House, New Delhi
110001
+91-11-23372424
+91-11-23372444
C-DOT Campus, Mehrauli, New Delhi - 110030
+91-11-26802854
+91-11-26598242
C-DOT Campus, Mehrauli, New Delhi - 110030
+91-11-26598724
+91-11-26598490
C-DOT Campus, Mehrauli, New Delhi - 110030
+91-11-26598354
+91-11-26598355
Electronic City, Phase-I, Hosur Road, Bangalore
560100
+91-80-25119043
+91-80-25119047
IInd Floor, Sanchar Bhawan, New Delhi - 110001
+91-11-23372307
+91-11-23372353
IInd Floor, Sanchar Bhawan, New Delhi - 110001
+91-11-23372307
+91-11-23372353
IIIrd Floor, BSNL, Harish Chandra Mathur Lane,
Janpath, New Delhi - 110001
+91-11-23734073
+91-11-23734075
Room No. 351, K. L. Bhawan, New Delhi - 110001
+91-11-23320252
+91-11-23329088
ITI Bhavan, Doorvaninagar, Bangalore - 560 016
+91-80-25614422
+91-11-25614400
Room No. 704, Sanchar Bhawan, New Delhi
110001
+91-11-23715145
+91-11-23036861
Electronics Niketan, 6 CGO Complex, New Delhi
110003
+91-11-24363074
+91-11-24363074
318, Sanchar Bhawan, New Delhi - 110001
+91-11-23372144
+91-11-23372150
C-DOT Campus, Mehrauli, New Delhi - 110030
+91-11-26802854
+91-11-26598242
C-DOT Campus, Mehrauli, New Delhi - 110030
+91-11-26598724
+91-11-26598490
C-DOT Campus, Mehrauli, New Delhi - 110030
+91-11-26598354
+91-11-26598355
Electronic City, Phase-I, Hosur Road, Bangalore
560100
+91-80-25119043
+91-80-25119047
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+91-11-26802854
+91-11-26598490
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+91-11-26598724
+91-11-26598490
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+91-11-26598354
+91-11-26598355
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+91-80-25119043
+91-11-25119047