Metro services were disrupted for over an hour and a half on Thursday afternoon following a snag at a point beyond Dum Dum station where the trains change tracks for the return journey towards New Garia.
The authorities said the snag was detected at the “crossover point” while a train — after all its passengers had got off — was changing tracks at 1.43pm.
“The wheels got jammed because of a problem in the tracks, which was resolved at 3.14pm. As soon as the snag was detected, we started operating trains between Girish Park and Kavi Subhas stations,” said Metro spokesperson Protyush Ghosh.
When the problem could not be resolved even after half an hour, the authorities started running both north- and south-bound trains along the Girish Park-to-Dum Dum track.
The trains ran at intervals of about 12 minutes. The usual interval is seven minutes during the period.
“The delay was inevitable since we were running trains along a single track. Any attempt to speed up services could have led to an accident,” said a senior Metro official.
Ten trains — five up and five down — were cancelled because of the snag.
Passengers were frustrated as the services were disrupted just before the start of India-Australia World Cup quarter-final.
“I rushed out of the university skipping two classes so that I could reach my Garia house before the start of the match. However, when I reached Dum Dum at 2pm, I found that the trains were not running. There was no announcement also about when the services were expected to be restored,” said Bidyut Barik, a first-year student of history at Rabindra Bharati University.
“I took an autorickshaw to Chiria More, from where I took a bus that reached Garia at 4pm, an hour and a half after the match had started,” added Barik.
Many other passengers alleged that the Metro authorities had not made announcements about the disruption.
“I came to Shyambazar station around 2pm, where the cops told me that trains were not plying. So I took a bus to my Bansdroni home. But later I came to know that the trains were plying south from Girish Park station. Had I known that, I would have taken the Metro from Girish Park,” fumed Avishek Dutta, a first-year student of Raja Manindra Chandra College.