NEW DELHI: Delhi Metro Rail Corporation often carries out maintenance activities at night. During such a mega block from 11pm to 6am, which is always planned in advance, the train company undertakes maintenance work with the coordination of other departments.
A mega block is a scheduled maintenance period in which a section of the metro rail network is closed after the day’s passenger services. It is generally granted from 11pm to 6 am to ensure that passenger services are slated for full opening only after the cessation of the mega block.