TRAI Assesses Mobile Network Quality across Chandigarh, Mohali & Panchkula Urban Area (in Punjab LSA)

Information Note to the Press (Press Release No 72/2026) TELECOM REGULATORY AUTHORITY OF INDIA www.trai.gov.in New Delhi, 08-06-2026 For Immediate Release TRAI Assesses Mobile Network Quality across Chandigarh, Mohali & Panchkula Urban Area (in Punjab LSA) The Telecom Regulatory Authority of India (TRAI) has released findings of Independent Drive Test (IDT) conducted across Chandigarh, Mohali & Panchkula Urban Area (in Punjab LSA), during the month of April 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 tests across City drive - 453.2 KMs, Hotspot locations - 15 and Walk Test - 1.5 KMs in Chandigarh, Mohali & Panchkula Urban Area during 6th April 2026 to 10th April 2026 in Punjab LSA.

These tests were 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 routes indicating City drive, Inter-operator calling, Hotspots and Walk tests, as per the

legends shown on the map: ­ In'teroperat'or Hotspot W alk test P'l"n J S"lr.ltna W1lrll1tro s.uu.ruaty l ...

I Qn::)nntpun:. •n'f!S'l-1~5. 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 (OCR), Call Setup Time, Call Silence Rate, Speech Quality (MOS). c) Call Silence Instance: Number of call silence instance occurred during the calls.

d) Data Servies: Download/ Upload Throughput, Latency, Jitter, Packet Drop Rate.

6. The overall mobile network performance in Chandigarh, Mohali & Panchkula Urban

Area 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 97/ 63149 for Airtel, 7755/ 61140 for BSNL, 356/ 59297 for RJIL and 382/62915 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 ofsuccessfully established calls, were 0 / 566 for Airtel, 24/534 for BSNL, 4/554 for RJIL and 2 /542 for VIL. Details of the dropped call locations have been provided in the map Annexed.

c) Call Silence Instance - Call silence instances, measured as the total number of silence instances observed for> 3 seconds out of the total calls established, were 7 / 543 for Airtel, 16/ 447 for BSNL, 9 / 551 for RJIL and 3 / 552 for VIL. Details of the call silence instance locations have been

provided in the map Annexed. d) Data Download and Upload Throughput: i) Data Download performance (Overall): Average download speed was observed as 169.66 Mbps for Airtel (5G/4G), 11.00 Mbps for BSNL (4G/3G/2G), 203.16 Mbps for RJIL (5G/4G) and 48.27 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 23.28 Mbps for Airtel (5G/4G), 4.96 Mbps for BSNL (4G/3G/2G), 23.85 Mbps for RJIL (5G/4G) and 17.97 Mbps forVIL (5G/4G/2G). Detail of upload throughput has been provided in the map Annexed.

Locations of Dropped Calls and Call Silence instances can be seen by clicking red dot on the map Annexed.7. Details of drive test route and area covered during the IDT are as under: ­

City: Chandi Madir, Panchkula, Zirakpur, Dera Bassi, Dappar, Azizpur, GMADA Aerocity, Tangari, Cholta Khurd, Marinda, Kurali, Kharar, New Chandigarh, Nayagaon, Sector-15, Sector-42, Sahibzada Ajit Singh Nagar, Greater Mohall, Sector­ 68, Sector-46, Sector-27 Industrial Area Phase-I, II etc. in Chandigarh, Mohali & Panchkula Urban Area.

7. The findings of this IDT report have been shared with respective TSPs for taking further necessary action at their end, if required. Detailed report ofIDT 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.

(Rajesh Kumar Agerwal) Advisor, TRAI Regional Office, Jaipur.Annexure 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 63149 61140 59297 62915 Number of Samples having poor signal strength 97 7755 356 382

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 AIRTEL BSNL 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 566 534 554 542 Number of dropped Calls 0 24 4 2 Locations of Dropped Calls BSNL RJIL VIL

Note: Dropped calls locations are shown in red colour and which can be clicked to know the exact location (latitude and longitude) on the maps.

2c) Call Silence Instance - The TSP-wise details of Call silence instance in Auto-selection mode (5G/4G) are as below:

Parameter AIRTEL BSNL RJIL VIL Call Established 543 447 551 552 (within service provider network) Number of silences calls for >3 Sec 6 12 7 2 Total number of silence instances for >3 Sec 7 16 9 3 Locations of Call Silence Instance AIRTEL BSNL RJIL VIL

Note: Call silence instanc es are shown in red colour and which can be clicked to know the exact location (latitude and longitude) on the map.

3d) 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) 18.36 5.00 15.00 15.00 declared by TSP Average Download Throughput measured during (Mbits/s) 169.66 11.00 203.16 48.27 IDT AIRTEL BSNL RJIL VIL

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

4(ii) Upload Throughput Measured AIRTEL BSNL RJIL VIL Parameter in (upto 5G) (upto 4G) (upto 5G) (upto 5G) Typical upload throughput (Mbits/s) 0.68 3.00 7.00 8.00 declared by TSP Average Upload Throughput (Mbits/s) 23.28 4.96 23.85 17.97 measured during IDT AIRTEL BSNL RJIL VIL

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

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