The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Construction World[2], 16 September 2026, narrows the year to a month: DMRC is "targeting December 2026 for the opening of the first operational section of the Golden Line between Tughlaqabad and Sangam Vihar. The 8.4-km stretch is planned as the initial section". December is the last month of the year the pin already sat on, so the day stands at 31 December 2026 - now as the end of a named month rather than a bare year. The full Aerocity-Tughlakabad corridor follows later.
The most recent report on the line puts a month on what the pin had only as a year: DMRC is "targeting December 2026 for the opening of the first operational section of the Golden Line between Tughlaqabad and Sangam Vihar". It also says which stretch runs first - the 8.4 km, four-station initial section - so the pin's partial opening is the one being dated.[1]
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