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

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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 underthe supervisionof 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: -

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5. 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.

Annexure

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

Coverage) 0 984 0 0

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

Note: Plot is based on Dynamic Drive Test results only.

AIRTEL BSNL

RJIL VIL

2 Ahmedabad to Gandhidham Rail Route

b) 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

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.

BSNL

3 Ahmedabad to Gandhidham Rail Route

c) 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

Parameter Measured

AIRTEL

(upto 5G)

BSNL

(upto 4G)

RJIL

(upto 5G)

VIL

(upto 5G)

Typical Download throughput

declared by TSP (Mbits/s) 18.00 5.00 15.00 15.00

Average Download

Throughput measured during

IDT

(Mbits/s) 64.47 18.52 134.73 23.44

Note: Plot is based on Dynamic Drive Test results only.

BSNLAIRTEL

RJIL VIL

4 Ahmedabad to Gandhidham Rail Route

(ii) Upload Throughput

Parameter Measured

AIRTEL

(upto 5G)

BSNL

(upto 4G)

RJIL

(upto 5G)

VIL

(upto 5G)

Typical upload throughput

declared by TSP (Mbits/s) 8.00 3.00 7.00 8.00

Average Upload Throughput

measured during IDT (Mbits/s) 13.32 7.64 14.93 11.48

Note: Plot is based on Dynamic Drive Test results only.

RJIL

BSNLAIRTEL

VIL