The Delhi Metro has fixed steel frames at the x-ray baggage machines at five large stations of Chandni Chowk, Anand Vihar, Shahdara, Kashmere Gate and Barakhamba, stating that the passengers "can carry maximum luggage limit of length 60 cm, width 45 cm and height 25 cm".
The maximum luggage weight of a single bag has also been capped at 15 kg.
A senior CISF officer said the measure has been put in place as a trial and testing of the new mechanism and it will be implemented at all the stations once a feedback is compiled and analysed.
The trial has been initiated as heavy bags and luggage were making it difficult for the x-ray screeners to scrupulously check the contents of the bags against sabotage and terror threats and was also leading to the breakdown of the scanners, the official said.
"Heavy and very heavy bags are leading to two kinds of problems. At big and inter-change stations like Chandni Chowk and Kashmere Gate, the baggage line is so engaged that to concentrate on all the contents of the bag is very hard. This is a possible security scare," another official said.
The second reason, he said, was that the x-ray machines quite routinely broke down and they required frequent servicing.
"At such times, the jawans had to scan the bags manually for a long time and that again is a security scare. One miss in this procedure and the results could be disastrous," he said.
The trial will also help in finding out how the x-ray machines function now, the official said.
The steel frames, put on x-ray machines at five stations, have been mounted externally and can be detached later, if the trial suggests that this measure will not work and that it troubles passengers.
Metro commuter Akash Bajaj said, "This step has major ramifications as passengers travelling to the airport, railway station or ISBT bus terminuses will not be able to travel as they carry large bags for the journey.
"This will cause agonising problems for them and will force them to use some other mode of transport to reach their destination."
"Also, the new procedure has to be advertised widely so that people rushing to these locations are well informed," Mr Bajaj said.
The over 150 stations of the Delhi Metro are the travel gateway for about 30 lakh passengers every day to various locations in the national capital region.
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