TRAI Releases Independent Drive Test Findings on Mobile Network Quality across Delhi-NCR Metro Routes

📌 Summary:

• Telecom Regulatory Authority of India (TRAI) released findings of an Independent Drive Test (IDT) assessing real-time mobile network quality across Delhi Metro, Noida Metro and NCRTC (Namo Bharat RRTS) routes under Delhi LSA
• Tests covered ~490 km of metro routes during 1–4 April and 14 April 2026, using SIMs of all telecom service providers (TSPs) over 2G/3G/4G/5G with advanced test handsets
• Purpose: verify on-ground Quality of Service (QoS) for consumers and push TSPs to improve services
• Key parameters: Coverage Gap, Call Setup Success Rate (CSSR), Drop Call Rate, Call Setup Time, Speech Quality (MOS), download/upload throughput, latency, jitter, packet drop
• Results showed wide variation — e.g. average 5G download speeds of 141.28 Mbps (RJIL), 81.72 Mbps (Airtel), 23.94 Mbps (VIL), while MTNL (4G) managed only 4.30 Mbps; MTNL also recorded the worst coverage gaps and dropped calls

🎯 UPSC Relevance: GS2/GS3 — role of a sectoral regulator (TRAI) in protecting consumers and enforcing service standards; telecom infrastructure quality

📝 Prelims Facts:

• TRAI is a statutory body established under the TRAI Act, 1997
• Drive test conducted across ~490 km under Delhi LSA (Licensed Service Area)
• QoS parameters include CSSR, Drop Call Rate and MOS (Mean Opinion Score for speech quality)

🔑 Key Term: Independent Drive Test (IDT) — a field test where live voice and data sessions are run from a moving vehicle using all operators' SIMs to measure real-world network performance against prescribed QoS benchmarks.