Delhi Metro Rail Corporation [Dmrc] — Only cash?

Address:

HUDA City centre

1. Line is way too long to even cut tickets took me 20 mins to cut my ticket at huda City centre.
2.no card payment nor UPI payment.
3. It's the captial of India and this too week.
4. Those machine don't work too (self ticket)
5. The coin usage is good but paper tickets that's wla waste of money and adding to the pollution.
What kind of service is the Delhi metro providing?