Read or download the official PDF of this gazette notification issued by the Ministry of Communications on 4th August 2026. Classified under Press Release.
Executive Summary
The Telecom Regulatory Authority of India (TRAI) released findings from an Independent Drive Test (IDT) conducted on June 30, 2026, to evaluate mobile network quality along the 300 KM Ahmedabad to Gandhidham rail route. The assessment measured key Quality of Service (QoS) parameters for voice and data across 2G, 3G, 4G, and 5G networks to inform consumers and encourage service improvements. The findings have been shared with Telecom Service Providers (TSPs) for necessary remedial actions.
Key Points / Main Content
Test Scope and Methodology
The IDT covered a 300 KM stretch passing through Viramgam, Dhrangadhra, Halvad, Samakhiali, and Bhachau.
Testing utilized advanced handsets and software to perform real-time analysis of live voice and data sessions across all TSPs.
Key parameters assessed included coverage gaps, Call Setup Success Rate (CSSR), Drop Call Rate (DCR), and data throughput (upload/download speeds).
Network Coverage and Voice Performance
Coverage Gaps: RJIL recorded the fewest poor signal samples (361), followed by VIL (522) and Airtel (909), while BSNL recorded the highest number of coverage gaps (3,904).
Call Drops: Airtel, RJIL, and VIL maintained near-perfect stability with zero dropped calls during the test; BSNL recorded 7 dropped calls out of 84 successfully established calls.
Data Throughput Results
Download Speeds: RJIL achieved the highest average download speed at 134.73 Mbps, followed by Airtel (64.47 Mbps), VIL (23.44 Mbps), and BSNL (18.52 Mbps).
Upload Speeds: Average upload speeds were led by RJIL (14.93 Mbps) and Airtel (13.32 Mbps), with VIL (11.48 Mbps) and BSNL (7.64 Mbps) trailing.
Impact Analysis
Telecom Service Providers (Airtel, BSNL, RJIL, VIL)Impact
The report publicly identifies specific performance deficiencies in coverage, call stability, and data speeds for each provider along the tested route.
Action Required
Providers must review the specific findings shared by TRAI and take necessary corrective actions to address coverage gaps and improve service quality.
Telecom ConsumersImpact
Consumers are provided with transparent, real-time data to compare the performance and reliability of different network providers along the Gujarat LSA rail route.
Action Required
Consumers are encouraged to use these findings to make informed decisions regarding their choice of service provider for this specific travel route.
TRAI Regional Office (Jaipur)Impact
The office supervised the test and is responsible for the dissemination of the results and addressing follow-up inquiries.
Action Required
The Regional Office must manage clarifications and provide the detailed report to stakeholders via the TRAI website or through official communication channels (email/telephone).
Key Entities Referenced
Telecom Regulatory Authority of India (TRAI): The regulatory body responsible for conducting and releasing the findings of the mobile network performance assessment.
Independent Drive Test (IDT): A specialized field initiative conducted by TRAI to verify the real-time quality of service (QoS) for mobile voice and data services.
Ahmedabad to Gandhidham Rail Route (Gujarat LSA): The primary geographic location and rail corridor where the network quality assessment was focused.
Telecom Service Providers (TSPs): The commercial entities, including Airtel, BSNL, RJIL, and VIL, whose network performance was measured and evaluated.
TRAI Regional Office Jaipur: The specific regulatory department that supervised the execution of the drive test and manages inquiries regarding the report.
Ministry of Communications
TRAI Assesses Mobile Network Quality on
Ahmedabad to Gandhidham Rail Route (Gujarat
LSA)
प्रव तथ: 04 AUG 2026 11:07AM by PIB Delhi
The Telecom Regulatory Authority of India (TRAI) has released findings of Independent Drive Test (IDT)
conducted on Ahmedabad to Gandhidham Rail Route (Gujarat LSA), during the month of June 2026,
for information of general telecom consumers. The purpose of this drive test is to assess and verify real
time quality of mobile network services (both voice & data) provided by Telecom Service Providers
(TSPs). During the IDT, TRAI captures performance of TSPs for key Quality of Service (QoS) parameters
like Coverage, Call Drop Rate (CDR), Call Setup Success Rate (CSSR), data Download (DL) and Upload
(UL) throughput etc., which are then published to inform Consumers and encourage TSPs to improve their
services.
These IDTs have been designed to capture on ground mobile network performance of all TSPs across
diverse usages environment like cities, hotspots, public transport hubs, etc. In this type of drive testing,
live data and voice sessions are established using SIM cards from all TSPs over 2G, 3G, 4G, and 5G
networks. Multiple advanced test handsets are used, and the sessions are monitored and analysed in real-
time using advanced Software Systems.
TRAI, through its appointed agency, conducted drive test from Ahmedabad to Gandhidham Rail Route on
30th June 2026, covering 300 KMs (Gujarat LSA). This test was conducted under the supervision of the
TRAI Regional Office Jaipur. The observations presented in drive test reports represent the performance
of the TSPs on the area/ route under test on the day/ time of conducting the drive test.
Drive Test Route Map: The following map provides overview of drive test route as per the legends
shown on the map: -
Key Parameters Assessed
a. Coverage Gap: Percentage of samples, for which signal strength observed less than the minimum
prescribed signal strength for respective technology (2G/ 3G/ 4G/ 5G).b. Voice Services: Call Setup Success Rate (CSSR), Drop Call Rate (DCR), Call Setup Time, Call
Silence Rate, Speech Quality (MOS).
c. Data Servies: Download/ Upload Throughput, Latency, Jitter, Packet Drop Rate.
The overall mobile network performance on Ahmedabad to Gandhidham Rail Route (Gujarat LSA) for the
key parameters has been summarised below:
a. Coverage Gap - The signal strength observed during voice testing on the drive test route in
auto-selection mode (5G/4G/3G/2G), measured as the number of samples having poor signal
strength out of the total samples collected, was 909/19130 for Airtel, 3904/17085 for BSNL,
361/19028 for RJIL and 522/18945 for VIL. Details of the coverage gaps have been
provided in the map Annexed.
b. Dropped Calls - Dropped calls, measured as the number of dropped calls out of the number
of successfully established calls, were 0/96 for Airtel, 7/84 for BSNL, 0/96 for RJIL and
0/95 for VIL. Details of the dropped call locations have been provided in the map Annexed.
c. Data Download and Upload Throughput:
i. Data Download performance (Overall): Average download speed was observed as 64.47
Mbps for Airtel (5G/4G), 18.52 Mbps for BSNL (4G/3G/2G), 134.73 Mbps for RJIL
(5G/4G) and 23.44 Mbps for VIL (5G/4G/2G). Detail of Download throughput has been
provided in the map Annexed.
ii. Data Upload performance (Overall): Average upload speed was observed as 13.32 Mbps
for Airtel (5G/4G), 7.64 Mbps for BSNL (4G/3G/2G), 14.93 Mbps for RJIL (5G/4G) and
11.48 Mbps for VIL (5G/4G/2G). Detail of upload throughput has been provided in the map
Annexed.
Locations of Dropped Calls can be seen by clicking red dot on the map Annexed.
Details of drive test route and area covered during the IDT are as under: -
Ahmedabad to Gandhidham passing through Viramgam Junction, Dhrangadhra Junction, Halvad,
Samakhiali Junction & Bhachau etc.
The findings of this IDT report have been shared with respective TSPs for taking further necessary action
at their end, if required. Detailed report of IDT is made available on the TRAI website at www.trai.gov.in.
For any clarification or additional information, an email can be sent to Regional office of TRAI at Jaipur
on Email id adv.jaipur@trai.gov.in Regional Office of TRAI at Jaipur RO can be contacted on telephone
no. 0141-2701919.
Click here to see Annexure
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