RSA with https://indiarailinfo.com/train/-9829-9829-chennai-central-hosur-express-9829-9829-img96845/56121 and https://indiarailinfo.com/train/-9829-9829-hosur-chennai-central-express-9829-9829-img96844/56147 (MAS-HSRA-MAS Express). Coaches S1 to S7 remain dereserved between HSRA and BWT. B1 remains locked.
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