Most telecom service providers failed to meet the call drop rate threshold of less than two percent in Delhi in a recent test drive, Telecom Regulatory Authority of India (TRAI) data revealed here on Wednesday.
"In the last 8 - 9 months we have increased frequency and coverage of test drives.
Today we are launching Delhi's results, " TRAI Chairman R. S. Sharma told reporters in a press meet.
The test drive was done in Delhi between May 3 - 6.
The test route covered a distance of around 600 km.