Due to remodelling work at Tambaram yard in Chennai, the Southern Railway has announced cancellations and diversions of several train services till August 17th. The Tirunelveli - Chennai Egmore Vande Bharat Express (20666) is fully cancelled on August 6th. Several trains originating from Chennai Egmore will instead depart from Chengalpattu, including...
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the Chennai Egmore - Tirunelveli Superfast Express (12631), Chennai Egmore - Sengottai Pothigai Superfast Express (12661), and Chennai Egmore - Kanniyakumari Express (12633). The Sengottai - Chennai Egmore Pothigai Superfast Express (12662), Tirunelveli - Chennai Egmore Superfast Express (12632), and Kanniyakumari - Chennai Egmore Express (12634) will be short terminated at Chengalpattu. The Kanniyakumari - Hazrat Nizamuddin Thirukkural Express (12641) will be diverted via Villupuram and have an additional stop at Perambur on August 14th. The Howrah - Tiruchy Superfast Express (12663) will be diverted via Perambur, skipping stops at Chennai Egmore, Tambaram, Chengalpattu and Melmaruvathur on August 15th. The Chennai Egmore - Karaikal Express (16175) is rescheduled to depart at 10.25 pm from August 7th to 17th.

Due to Tambaram remodelling works from August 7th to 17th, several express trains are experiencing changes in their schedules. Some trains are fully cancelled, while others are partially cancelled, diverted, or short-terminated. For example, the Train No 20666 Tirunelveli – Chennai Egmore Vande Bharat Express on August 16th is...
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fully cancelled. Train No 12693 Chennai Egmore – Tuticorin Pearl City Express on August 15th and 17th will originate from Chennai Egmore at 7:30 pm. Train No 12637 Chennai Egmore – Madurai Pandian Superfast Express on August 15th will originate from Chennai Egmore at 9:40 pm. Train No 16865 Chennai Egmore -Thanjavur Uzhavan Express on August 15th will originate from Chennai Egmore at 10:15 pm. Train No 12631 Chennai Egmore – Tirunelveli Superfast Express on August 16th and 17th will originate from Chengalpattu at 9:10 pm. Train No 12661 Chennai Egmore – Sengottai Pothigai Superfast Express on August 16th and 17th will originate from Chengalpattu at 9:40 pm. Train No 12633 Chennai Egmore – Kanniyakumari Express on August 16th and 17th will originate from Chengalpattu at 6:20 pm. Train No 12662 Sengottai – Chennai Egmore Pothigai Superfast Express, Train No 12632 Tirunelveli –Chennai Egmore Superfast Express on August 15th and 16th, Train No 12634 Kanniyakumari – Chennai Egmore Express on August 15th will be short terminated at Chengalpattu. Train No 12641 Kanniyakumari – Hazrat Nizamuddin Thirukkural Express on August 14th will be diverted to run via Villupuram, Vellore, Katpadi, Arakkonam, and Perambur. Additional stoppage will be provided at Perambur at 10:55/11:00 am. Train No 12663 Howrah –Tiruchchirappalli Superfast Express on August 15th will be diverted to run via Perambur, Arakkonam, Katpadi, Tiruvannamalai, and Villupuram, skipping stoppages at Chennai Egmore, Tambaram, Chengalpattu, and Melmaruvathur. Additional stoppage will be provided at Perambur 8:00/8:05 pm. Train No 16175 Chennai Egmore – Karaikal Express from August 7th to 17th is rescheduled to leave Chennai Egmore at 10:25 pm. Except for the mentioned dates, these train services will run as per the earlier notification.