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.
Confirmed by IRFCA's[3] Indian Railways history FAQ and multiple independent sources, which date India's first passenger train from Bori Bunder to Thane to April 16, 1853.
Wikipedia's article on the Great Indian Peninsula Railway corroborates that the company operated India's first passenger train, from Bori Bunder to Thane on 16 April 1853, consistent with the pin's account.
IRFCA's Indian Railways history FAQ dates the first passenger train on the subcontinent to the Great Indian Peninsula Railway's run from Bombay (Bori Bunder) to Thane on 16 April 1853, matching the pin exactly.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.