Chennai Metro ARE02A Project Procurement Technical Specification of Dual Mode Detrainment Door System Name Date Signature Approved By Shivakumar S B 09.05.2025 Reviewed By Manjunath S 09.05.2025 Checked By Guruprasad N.C. / Saranya V 09.05.2025 Prepared By Shashank A. 09.05.2025.