Fixed Time Corridor Block for various safety and maintenance work has been approved in Chennai Division for the month of July 2026, hence the following changes have been made in the pattern of train services:

Partial Cancellation/Change in Origination of Train Services:

·Train No. 12679 Dr MGR Chennai Central – Coimbatore Intercity Express scheduled to leave Dr MGR Chennai Central at 14.30 hrs o­n 10^th, 12^th, 15^th, 17^th, 19^th, 22^nd July, 2026 will be partially cancelled between Dr MGR Chennai Central and Katpadi. The train will originate from Katpadi at its scheduled departure time of 16.15 hrs

·Train No. 12607 Dr MGR Chennai Central – KSR Bengaluru Lalbagh Express scheduled to leave Dr MGR Chennai Central at 15.30 hrs o­n 10^th, 12^th, 15^th, 17^th, 19^th, 22^nd July, 2026 will be partially cancelled between Dr MGR Chennai Central and Katpadi. The train will originate from Katpadi at its scheduled departure time of 17.30 hrs

Partial Cancellation/Short Termination of Train Services:

·Train No. 12680 Coimbatore – Dr MGR Chennai Central Intercity Express scheduled to leave Coimbatore at 06.20 hrs o­n 10^th, 12^th, 15^th, 17^th, 19^th, 22^nd July, 2026 will be partially cancelled between Katpadi and Dr MGR Chennai Central. The train will be short terminated at Katpadi

·Train No. 16552 Ashokapuram – Dr MGR Chennai Central Express scheduled to leave Ashokapuram at 04.45 hrs o­n 10^th, 12^th, 15^th, 17^th, 19^th, 22^nd July, 2026 will be partially cancelled between Katpadi and Dr MGR Chennai Central. The train will be short terminated at Katpadi

Regulation of Train Services:

·Train No. 12841 Howrah – Dr MGR Chennai Central Coromandel Express scheduled to leave Howrah at 15.10 hrs o­n 22^nd, 29^th July, 2026 will be regulated/delayed for 1 hour 50 minutes at a convenient location en route

·Train No. 12841 Howrah – Dr MGR Chennai Central Coromandel Express scheduled to leave Howrah at 15.10 hrs o­n 24^th July, 2026 will be regulated/delayed for 3 hour 20 minutes at a convenient location enroute

·Train No. 12389 Gaya – Dr MGR Chennai Central Express scheduled to leave Gaya at 05.30 hrs o­n 25^th July, 2026 will be regulated/delayed for 3 hour 50 minutes at a convenient location en route

·Train No. 12839 Howrah - Dr MGR Chennai Central Mail scheduled to leave Howrah at 23.45 hrs o­n 20^th July, 2026 will be regulated/delayed for 45 minutes at a convenient location enroute

·Train No. 12839 Howrah - Dr MGR Chennai Central Mail scheduled to leave Howrah at 23.45 hrs o­n 04^th, 11^th, 18^th, 21^st, 23^rd, 25^th, 28^th July, 2026 will be regulated/delayed for 50 minutes at a convenient location enroute

·Train No. 12839 Howrah - Dr MGR Chennai Central Mail scheduled to leave Howrah at 23.45 hrs o­n 02^nd, 07^th, 09^th, 14^th, 16^th July, 2026 will be regulated/delayed for 1 hour 5 minutes at a convenient location enroute

·Train No. 20494 Chandigarh – Madurai Express scheduled to leave Chandigarh at 08.05 hrs o­n 20^th July, 2026 will be regulated/delayed for 35 minutes at a convenient location enroute

·Train No. 15628 Silchar – Coimbatore Express scheduled to leave Silchar at 19.10 hrs o­n 20^th July, 2026 will be regulated/delayed for 40 minutes at a convenient location enroute

·Train No. 22644 Patna – Ernakulam Superfast Express scheduled to leave Patna at 14.00 hrs o­n 23^rd July, 2026 will be regulated/delayed for 40 minutes at a convenient location enroute

·Train No. 22644 Patna – Ernakulam Superfast Express scheduled to leave Patna at 14.00 hrs o­n 02^nd, 09^th, 16^th July, 2026 will be regulated/delayed for 1 hour 10 minutes at a convenient location enroute

·Train No. 22642 Shalimar – Thiruvananthapuram Central Superfast Express scheduled to leave Shalimar at 23.45 hrs o­n 07^th, 14^th July, 2026 will be regulated/delayed for 1 hour 10 minutes at a convenient location enroute

·Train No. 22642 Shalimar – Thiruvananthapuram Central Superfast Express scheduled to leave Shalimar at 23.45 hrs o­n 28^th July, 2026 will be regulated/delayed for 55 minutes at a convenient location enroute

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