TRAI Releases Network Quality Assessment for Mumbai: Airtel, RJIL, VIL Lead in Call and Data Performance

Mumbai, January 2026: The Telecom Regulatory Authority of India (TRAI) has published its Independent Drive Test (IDT) findings for Mumbai, evaluating real-world mobile network performance across urban, coastal, and railway routes during November 2025.

The assessment, conducted under TRAI Bengaluru’s supervision, covered 320.2 km of test routes, including city drives, railway lines, walk tests, hotspots, and coastal routes. The survey tested 2G, 3G, 4G, and 5G networks, reflecting user experience across diverse handset capabilities.

Key Findings – Voice Services:

Call Setup Success Rate (CSSR): RJIL 99.81%, Airtel 99.62%, VIL 96.07%, MTNL 28.52%
Drop Call Rate (DCR): Airtel 0.00%, RJIL 0.56%, VIL 6.43%, MTNL 22.47%
Call Setup Time (CST): RJIL 0.60 sec, Airtel 1.32 sec, VIL 5.07 sec, MTNL 4.71 sec
Mean Opinion Score (MOS): VIL 4.44, Airtel 3.91, RJIL 3.80, MTNL 2.67

Key Findings – Data Services:

Average Download Speeds: RJIL 221.34 Mbps, Airtel 84.99 Mbps, VIL 49.79 Mbps, MTNL 4.05 Mbps
Average Upload Speeds: RJIL 32.82 Mbps, Airtel 25.86 Mbps, VIL 18.94 Mbps, MTNL 1.11 Mbps
Hotspot Performance (5G Download / Upload in Mbps): RJIL 319.76 / 34.13, Airtel 134.32 / 36.85, VIL 51.52 / 21.72

TRAI’s testing covered high-density neighborhoods such as Colaba, Byculla, Dadar, Dharavi, Bandra East, Kurla, Chembur, Ghatkopar, and Wadala. Public transport hubs like CSMT, Ghatkopar Railway Station, and Saki Naka Metro Station, as well as coastal areas from Gateway of India to Karanja, were also included. Walk tests focused on crowded pedestrian zones near Lokmanya Tilak Terminus and Tata Memorial Hospital.

The tests used TRAI-calibrated equipment and standardized protocols to ensure accuracy. Findings have been communicated to the relevant telecom service providers for corrective action.

The detailed report is available on the TRAI website www.trai.gov.in. For queries, contact Shri Brajendra Kumar, Advisor (Regional Office, Bengaluru) at adv.bengaluru@trai.gov.in or +91-80-22865004.