Yes bro,
again
From HWH direct connection through BUS are available to following destinations-
1-SHM
2-SDAH
3-SRC...
more...
For KOAA you can reach via two routes
1-Go to SDAH then take EMU or you can take Bus (longest one).
2-Cross HWH Bridge then board EMU of circular railways*(STN-EDEN GARDENS/BARABAZAR)(Shortest path).
*Kindly confirm the schedule of EMU's before boarding.