TRAI drive test in Mumbai finds MTNL far behind on call success and drop rates
TRAI released findings on 13 January 2026 of its Independent Drive Test of mobile networks across 320.2 km of Mumbai in November 2025, which showed MTNL with a 28.52% call setup success rate.
Summary
Mumbai's mobile networks were tested by TRAI in an Independent Drive Test (IDT) over 320.2 km of city, coastal and local railway routes from 3 to 7 November 2025, with findings released on 13 January 2026. The tests, supervised by TRAI's Regional Office in Bengaluru, covered 2G, 3G, 4G and 5G voice and data services. In auto-selection mode, call setup success rates were 99.62% for Airtel, 99.81% for Reliance Jio, 96.07% for Vodafone Idea and 28.52% for MTNL, while MTNL's drop call rate was 22.47% against 0.00% for Airtel.
Key facts
- Test
- TRAI Independent Drive Test, Mumbai LSA
- Period
- 3–7 November 2025
- Coverage
- 320.2 km incl. 192.4 km city, 115 km local railway, 9.7 km coastal
- Supervision
- TRAI Regional Office, Bengaluru
- Call setup success
- Airtel 99.62%, RJIL 99.81%, VIL 96.07%, MTNL 28.52%
- Drop call rate
- Airtel 0.00%, RJIL 0.56%, VIL 6.43%, MTNL 22.47%
Practice MCQs 2 questions
In TRAI's Independent Drive Test across Mumbai (November 2025), which operator recorded a call setup success rate of only 28.52%?
Show answer
Correct answer: B — MTNL
PIB (Communications): MTNL had a 28.52% call setup success rate, against 99.62% (Airtel), 99.81% (RJIL) and 96.07% (VIL).
Which TRAI regional office supervised the Independent Drive Test in Mumbai whose results were released in January 2026?
Show answer
Correct answer: B — Bengaluru
PIB (Communications): the drive tests were conducted under the supervision of the TRAI Regional Office, Bengaluru.