E-Tender No: CMRL/O&M/Civil/ Closure for Roof & Wall Openings – RT-01/2021 “Supply, Fabrication and Installation of Galvalume sheet & Polycarbonate sheet Roofing at Platform Level of Existing Elevated Stations (Koyambedu, CMBT, Arumbakkam, Vadapalani, Ashok Nagar, Ekattuthangal , Alandur Metro) and Design, Supply, Fabrication & Installation of Fixed Glazing with Toughened Laminated Glass and Aluminium Louvers on the Side openings of Existing CMBT and Alandur Elevated stations’’