Delhi Metro was officially launched on 25th Dec, 2002 by the former PM of India, Atal Bihari Vajpayee.
On December 25, 2002, the Red Line’s first 8.2-kilometre segment from Shahdara to Tis Hazari, with only six stations,
Delhi metro is known to be the second oldest metro network in India after Kolkata.
The Delhi Metro serves 286 stations across 12 lines with a total length of 391 km.
The daily ridership of Delhi Metro is around 27 lakh (2019-20) while the annual ridership is 179 crore.
Except for a few shops, there are no dustbins inside metro stations. Metro stations still remains clean.
The "Sari Guard" feature on the escalators of Metro stations prevents saris from getting caught or knotted between them.