⏺️I have not alighted at Yeswantpur till date. So no idea. I have gone from KSR Bengaluru to Majestic bus stand few times with just a backpack. So didn't feel any problem
⏺️I have done bus/train interchange at Chennai Central, Chennai Egmore and Tambaram. It is a good system managed by SR and MTC
⏺️Thanks for information regarding bus/train system at Mumbai