TRAI Releases Independent Mobile Network Performance Data for South Delhi Areas

Overview of Findings

The Telecom Regulatory Authority of India (TRAI) has published the results of its Independent Drive Test (IDT) conducted in July 2026. The testing aimed to evaluate the real-time quality of mobile network services across South Delhi and surrounding regions, including Dwarka, Janakpuri, Saket, and Noida Sector 62.

The assessments monitored various performance metrics to provide transparency for consumers and to signal areas requiring service improvements to Telecom Service Providers (TSPs).

Key Performance Indicators

TRAI utilized advanced test handsets and software to measure several critical network parameters:

• Coverage Gap: The percentage of samples failing to meet minimum prescribed signal strength.
• Voice Quality: Metrics included Call Setup Success Rate (CSSR), Drop Call Rate (DCR), and instances of call silence.
• Data Services: Performance was measured by average download and upload throughput, latency, and jitter.

Performance Summary

According to the TRAI report, performance varied significantly across providers. Notably, in terms of voice connectivity:

• Dropped Calls: Airtel and VIL reported 3 dropped calls each, while RJIL recorded 1 drop. MTNL reported 99 dropped calls out of 661 successfully established connections.
• Coverage Gaps: MTNL demonstrated a higher number of samples with poor signal strength (50,483) compared to other providers like Airtel (610), RJIL (1,050), and VIL (527).
• Data Speeds: Average download throughput was measured at 257.03 Mbps for RJIL, 176.82 Mbps for Airtel, 35.07 Mbps for VIL, and 4.69 Mbps for MTNL.

Testing Scope

The drive tests were conducted between July 6 and July 10, 2026, covering 310.4 kilometers of road, along with six specific hotspot locations such as the Hauz Khas Metro Station and AIIMS OPD area. Walk tests were also performed in high-density areas including Sarojini Nagar Market.

How to Access Detailed Reports

TRAI has shared these findings with the relevant TSPs for operational review. Members of the public can view the full, detailed technical reports—which include interactive maps and specific location data—by visiting the official TRAI website at www.trai.gov.in.