ISRO Telemetry, Tracking and Command Network (ISTRAC) Provides mission support to near-earth satellites and launch vehicle missions.
Has a network of ground stations at -Bangalore, -Lucknow, -Port Blair, -Sriharikota, -Thiruvananthapuram.
Besides, ISTRAC has TTC stations at -Mauritius, -Bearslake(Russia), -Biak(Indonesia) and -Brunei.
A multi-mission Spacecraft Control Centre is located at Bangalore.
Currently supporting -IRS-1B, -IRS-1C, -IRS-1D, -IRS-P3, -IRS-P4 and -SROSS-C2 satellites.
Operates Local User Terminal/Mission Control Centre (LUT/MCC) under the international Satellite-Aided Search and Rescue Programme.