If you want to go to City Railway Station metro station from KSR Bengaluru Railway Station follow these steps:
⏺️Go to main Foot Over Bridge (FOB)
⏺️Go straight untill unreserved ticket booking counter which is situated after platform no.9/10 exit - Picture 1
⏺️Turn left near unreserved ticket booking counter. You can see an indication board "Towards KSR Metro Station side" - Picture 2...
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⏺️Go straight on the new FOB - Picture 3
⏺️Turn right near another indication board "Towards KSR Metro Station side" - Picture 4
Pictures source: Self