The Telecom Regulatory Authority of India (TRAI) today released the results of Independent Drive Tests (IDTs) conducted in May 2025, covering thirteen cities, highway, railway and coastal corridors in eight Licensed Service Areas (LSAs). The thirteen cities, highway, railway and coastal area fall under Ranchi City and Latehar District, Ahmedabad City, Railway route from Ahmedabad to Bhavnagar, Coastal area at Ghogha Port, Bhavnagar, Panipat City, Una & Mandi City, Chikmagaluru City, Chennai City, Ayodhya City, Moradabad City, Highway from Dehradun to Badrinath. These assessments were part of TRAI’s periodic Quality of Service (QoS) audits, aimed at evaluating real-time network performance. The tests were carried out using calibrated equipment and standardised protocols, under direct supervision of TRAI officials across diverse on-ground environments.

The drive tests were undertaken through TRAI-appointed agency and evaluated both voice and data services across 2G, 3G, 4G, and 5G technologies. The scope included City Drive tests, Walk tests, Highway/ Railway/ Coastal area test and hotspot analysis. The networks of Bharti Airtel Limited, Reliance Jio Infocomm Limited, Vodafone Idea Limited, and BSNL were covered in auto-selection and locked mode as per the requirement of tests.

Key Parameters Assessed:

1. Voice Services: Call Setup Success Rate (CSSR), Drop Call Rate (DCR), Call Setup Time, Call Silence Rate, Speech Quality (MOS), Coverage.

2. Data Services: Download/Upload Throughput, Latency, Jitter, Packet Drop Rate, and Video Streaming Delay.

Key findings of Independent Drive Tests (IDTs) are as under:

1. Panipat and Ayodhya have demonstrated better network performance of operators in respect of Drop Call Rate and Call Setup Success Rates (CSSR). Data Download and Upload speeds are observed better in Ahmedabad, Chennai, Panipat and Ranchi.

2. Ranchi and Una & Mandi have recorded comparatively higher Drop Call Rates. Call Setup Success Rates (CSSR) in Ahmedabad, Chikmagaluru, Moradabad and Ranchi have observed much below the benchmark of 98%.

The details of drive tests conducted in the eight LSAs are given below:

S. No.	City / Routes Covered	Licensed Service Area	Period of Drive Test	Distance Covered	Performance summary (attached at)
1	Ranchi City and Latehar District	Bihar	24-05-2025 to 28-05-2025	City:  218.6 Kms Walk Test: 3.4 Kms	Annexure A
2	Ahmedabad City Railway: Ahmedabad to Bhavnagar Coastal: Ghogha Port, Bhavnagar	Gujarat	05-05-2025 to 14-05-2025	City: 381.7 Kms Railway: 247.1 Kms Coastal: 15.6 Kms	Annexure B
3	Panipat City	Haryana	20-05-2025 to 23-05-2025	City: 254.7 Kms Walk Test: 1.2 Kms	Annexure C
4	Una & Mandi City Highway: Una to Mandi Railway: New Delhi to Una	Himachal Pradesh	26-05-2025 to 28-05-2025	City: 116.6 Kms Walk Test: 2.3 Kms Highway: 283.9 Kms Railway: 384.8 Kms	Annexure D
5	Chikmagaluru City Highway: Bengaluru to Chikmagaluru	Karnataka	21-05-2025 to 24-05-2025	City: 308.7Kms Walk Test: 6.7 Kms Highway: 239.8 Kms	Annexure E
6	Chennai City	Tamil Nadu	06-05-2025 to 09-05-2025	City: 398.6 Kms	Annexure F
7	Ayodhya City	UP(East)	10-05-2025 to 12-05-2025	City: 215.8 Kms Walk Test: 3.0 Kms	Annexure G
8	Moradabad City Highway: Dehradun to Badrinath	UP(West)	05-05-2025 to 21-05-2025	City: 278.3 Kms Highway: 325 Kms	Annexure H

 

The detailed reports are available at TRAI website www.trai.gov.in. For any clarification/information, Shri Tejpal Singh, Advisor (QoS-I) TRAI may be contacted on email: adv-qos1@trai.gov.in or at Tel. No. +91-11-20907759.

Click here to see Annexure

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Samrat/Allen

(Release ID: 2141207)