**Executive Summary**
This document outlines the Telecom Regulatory Authority of India's (TRAI) findings from Independent Drive Tests (IDT) conducted in Chitradurga, Karnataka, in December 2025. The tests assessed the network quality of various telecom service providers (TSPs) across different usage environments and technologies (2G, 3G, 4G, and 5G). The findings have been communicated to the TSPs for necessary action.
**Key Points / Main Content**
* **Scope of the Tests:**
* Covered 401.2 km of Chitradurga City and surrounding areas, including city drives, hotspots, and walk tests.
* Evaluated 2G, 3G, 4G, and 5G technologies.
* **Key Parameters Assessed:**
* **Voice Services:** Call Setup Success Rate (CSSR), Drop Call Rate (DCR), Call Setup Time, Call Silence Rate, Speech Quality (MOS), and coverage.
* **Data Services:** Download/Upload Throughput, Latency, Jitter, Packet Drop Rate, and Video Streaming Delay.
* **Call Setup Success Rate (CSSR):**
* Airtel: 97.90%
* BSNL: 79.86%
* RJIL: 96.77%
* VIL: 76.10%
* *These rates are in auto-selection mode (5G/4G/3G/2G).*
* **Drop Call Rate (DCR):**
* Airtel: 0.39%
* BSNL: 3.63%
* RJIL: 0.98%
* VIL: 2.08%
* *These rates are in auto-selection mode (5G/4G/3G/2G).*
* **Data Download Performance (Overall):**
* Airtel: 133.45 Mbps
* BSNL: 9.12 Mbps
* RJIL: 173.99 Mbps
* VIL: 27.21 Mbps
* **Data Upload Performance (Overall):**
* Airtel: 30.77 Mbps
* BSNL: 2.52 Mbps
* RJIL: 15.48 Mbps
* VIL: 13.93 Mbps
* **Latency (Overall):**
* Airtel: 49.64 ms
* BSNL: 57.63 ms
* RJIL: 23.49 ms
* VIL: 48.09 ms
* **Call Setup Time:**
* Airtel: 1.22 seconds
* BSNL: 2.86 seconds
* RJIL: 0.85 seconds
* VIL: 2.15 seconds
* *These rates are in auto-selection mode (5G/4G/3G/2G).*
* **Call Silence/Mute Rate:**
* Airtel: 1.97%
* BSNL: 3.03%
* RJIL: 2.35%
* VIL: 9.96%
* **Mean Opinion Score (MOS):**
* Airtel: 3.86
* BSNL: 2.68
* RJIL: 4.29
* VIL: 3.71
**Impact Analysis**
**Telecom Service Providers (Airtel, BSNL, RJIL, VIL)**
* **Impact**: The report provides detailed performance metrics for each TSP's network in the Chitradurga LSA.
* **Action Required**: Review the findings, identify areas for improvement, and take necessary actions to enhance network quality.
Key Entities Referenced
Telecom Regulatory Authority of India (TRAI): The regulator that released the network quality assessment.
Chitradurga, Karnataka: The city and state where the network quality assessment was conducted.
Airtel: One of the Telecom Service Providers (TSPs) whose network performance was assessed.
BSNL: One of the Telecom Service Providers (TSPs) whose network performance was assessed.
RJIL: One of the Telecom Service Providers (TSPs) whose network performance was assessed.
Ministry of Communications
TRAI Assesses Network Quality Across
Chitradurga City and Surrounding Area
Posted On: 06 FEB 2026 5:40PM by PIB Delhi
The Telecom Regulatory Authority of India (TRAI) released its Independent Drive Test (IDT) findings for
the Chitradurga, Karnataka Licensed Service Area (LSA), covering extensive city/highway routes during
the month of December 2025. The drive tests, conducted under the supervision of the TRAI Regional
Office, Bengaluru, were designed to capture real-world mobile network performance across diverse usage
environments—urban zones, institutional hotspots, public transport hubs, and high-speed corridors.
From 02nd December 2025 to 05th December 2025, TRAI teams conducted detailed tests across 401.2 km
of Chitradurga City and the surrounding area, including 393.2 km of city drive, 13 hot spots, and an 8.0
km walk test. Technologies evaluated included 2G, 3G, 4G, and 5G, reflecting the service experience of
users across multiple handset capabilities. The findings of IDT have been intimated to all the TSPs
concerned for further necessary action.
Key Parameters Assessed:
a) Voice Services: Call Setup Success Rate (CSSR), Drop Call Rate (DCR), Call Setup Time, Call Silence
Rate, Speech Quality (MOS), and coverage.
b) Data Services: Download/Upload Throughput, Latency, Jitter, Packet Drop Rate, and Video Streaming
Delay.
Call Setup Success Rate—Airtel, BSNL, RJIL, and VIL have 97.90%, 79.86%, 96.77%, and 76.10% call
setup success rates, respectively, in auto-selection mode (5G/4G/3G/2G).
Drop Call Rate—Airtel, BSNL, RJIL, and VIL have drop call rates of 0.39%, 3.63%, 0.98%, and 2.08%,
respectively, in auto-selection mode (5G/4G/3G/2G).
Summary of Performance against Key QoS Parameters
CSSR: Call Setup Success Rate (i.e., in %), CST: Call Setup Time (in seconds), DCR: Drop Call Rate (in
%), & MOS: Mean Opinion Score representing typical voice quality.In Chitradurga city, the assessment included high-density neighborhoods like Adarsha Nagar, Seebara,
Vijapur, Obavanagathihalli, Hunasekatte, Malappanahatty, Shivaganga, Holalkere, Herur, Hosadurga,
Madadhakere, Beerenahalli, Hiriyur, Aimangala, Kyadiggere, Kalliroppa, Vittala Nagar, Nandanahalli,
Madakaripura, Haikal, Challakere, Thalaku, Mustur, Bogalerahatty, G. R. Halli, Pillekerenahalli, etc.
TRAI also evaluated real-world conditions at Challakere Bus Stand, Challakere Taluk Office, Chitradurga
District Hospital, Chitradurga KSRTC Bus Stand, Chitradurga RTO Office, District Collector Office
Chitradurga, Hiriyur Government Hospital, Hiriyur KSRTC Bus Stand, Hosadurga Government Hospital,
Hosadurga New Bus Stand, Muruga Rajendra Mata, Onake Obavva Stadium Chitradurga, and SJM
Institute Of Technology. reflect a stationary user experience.
The walk tests, conducted from 03rd to 05th December 2025 in APMC Market, Chandravalli Kere Park,
Chitradurga Fort, and Chitradurga Railway Station, captured mobile network behavior in crowded
pedestrian environments.The tests were conducted using TRAI-calibrated equipment and standardized protocols in real-time
environments. The detailed report is available at the TRAI website, www.trai.gov.in. For any
clarification/information, Shri Brajendra Kumar, Advisor (Regional Office, Bengaluru), TRAI, may be
contacted by email at adv.bengaluru@trai.gov.in or at Tel. No. +91-80-22865004.
****
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