• Source:JND
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In a big relief to the commuters of Kolkata metro has announced that the Purple Line, running between Joka and Majerhat, will be available on Saturdays as well. The services are expected to cater to the large population employed in the IT sector. 

The services will begin on November 22, 2025. According to a press release by the Kolkata Metro Rail Corporation, a total of 40 services, 20 UP and 20 Down, will operate every Saturday at an interval of 21 minutes. 

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Kolkata Metro Purple Line: Timings

On Saturdays, the first train will depart from Joka to Majerhat at 1:25 PM, while the first train from Majerhat will leave at 1:49 PM for Joka. The last service from Joka to Majerhat will run at 8:11 pm. The final train from Majerhat to Joka will depart at 8.32 pm.

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AI-Powered CCTV Cameras To Be Installed On Blue Line

In a separate development, the Kolkata metro officials have announced plans to install a new AI-powered IP-based CCTV surveillance network on the blue line by March 2026. 

Overall, it will be a Rs 25.34 crore project which will see the installation of 1,678 high-resolution cameras. The new cameras will replace the age-old station-level systems with a modern, centralised network aimed at accurate and swift threat detection, real-time alerts and improved passenger safety. 

The AI-powered cameras will automatically alert trained operators the moment it detect unattended baggage, a perimeter breach or even an unusual crowd behaviour. “Instead of reacting after an incident, the system pushes security teams to act immediately,” Rajasekhar Papolu, Managing Director of Brihaspathi Technologies Ltd, said in an interview as quoted by PTI.

Of the total cameras, 1,625 will be installed across all Blue Line rail stations and 53 at RPF stations, including Full HD and 4K UHD units. A 240 TB centralised storage system will be installed at the Metro Bhawan, the headquarters of the railways, which will retain data for a minimum of 30 days. Additionally, an integrated facial recognition system will be put in place so that the footage cannot be tampered with. 

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