Yeswantpur Lines and Bengaluru Cantt Lines don't have a common platform at KSR Bengaluru City. Platforms 8, 9 and 10 (Yeswantpur Lines)are different from rest of Platforms. The Station itself gets divided and has a different Exit Gate between Platforms 7 and 8.
Had you been to KSR Bengaluru City Junction you would've never said this.