TRAI Assesses Mobile Network Quality on Ahmedabad to Gandhidham Rail Route (Gujarat LSA)

Information Note to the Press (Press Release No 109/2026) TELECOM REGULATORY AUTHORITY OF INDIA www.trai.gov.in New Delhi, 04-08-2026 For Immediate Release TRAI Assesses Mobile Network Quality on Ahmedabad to Gandhidham Rail Route (Gujarat LSA) 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. 2. 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. 3. 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. 4. Drive Test Route Map: The following map provides overview of drive test route as per the legends shown on the map: - Page 1 of 35. 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. 6. 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. Page 2 of 3Annexure Ahmedabad to Gandhidham Rail Route a) Coverage Gap – The coverage distribution found less than the minimum specified signal strength for the drive test route in auto-selection mode (5G/4G/3G/2G) during voice testing, is as below: Parameter AIRTEL BSNL RJIL VIL Total Number of Samples captured on Drive test route 19130 17085 19028 18945 Number of Samples having poor signal strength 909 3904 361 522 Number of Samples having limited service (No 0 984 0 0 Coverage) Note: Signal strength has been considered poor if it falls below −110 dBm for 5G & 4G, −90 dBm for 3G, and −85 dBm for 2G. Coverage Gap observed BSNL AIRTEL RJIL VIL Note: Plot is based on Dynamic Drive Test results only. 1b) Dropped Calls - The TSP-wise details of dropped calls in auto-selection mode (5G/ 4G/ 3G/ 2G) are as below: Parameter AIRTEL BSNL RJIL VIL Number of successful Calls Established 96 84 96 95 Number of dropped Calls 0 7 0 0 Locations of Dropped Calls BSNL Note: Dropped calls locations are shown in red colour and which can be clicked to know the exact location (latitude and longitude) on the map. 2 Ahmedabad to Gandhidham Rail Routec) Data Download and Upload throughput: The TSP-wise details of Average Download (DL) and Upload (UL) throughput against declared typical DL/UL Throughput for month, in Auto-selection mode (5G/4G/3G/2G) are as below: (i) Download Throughput Measured AIRTEL BSNL RJIL VIL Parameter in (upto 5G) (upto 4G) (upto 5G) (upto 5G) Typical Download throughput (Mbits/s) 18.00 5.00 15.00 15.00 declared by TSP Average Download Throughput measured during (Mbits/s) 64.47 18.52 134.73 23.44 IDT BSNL AIRTEL RJIL VIL Note: Plot is based on Dynamic Drive Test results only. 3 Ahmedabad to Gandhidham Rail Route(ii) Upload Throughput Measured AIRTEL BSNL RJIL VIL Parameter in (upto 5G) (upto 4G) (upto 5G) (upto 5G) Typical upload throughput (Mbits/s) 8.00 3.00 7.00 8.00 declared by TSP Average Upload Throughput (Mbits/s) 13.32 7.64 14.93 11.48 m easured during IDT AIRTEL BSNL RJIL VIL Note: Plot is based on Dynamic Drive Test results only. 4 Ahmedabad to Gandhidham Rail Route