there are total 9
1:borivali slow local
2:virar/vasai slow and churchgate slow(all originating form adh)
3:churchgate slow and fast(from bvi)
4:borivali/bhayender/vasai/virar fast
5:churchgate,dadar...
more... fast(from bhayender,vasai,virar)
6,7:panvel,cstm slow and some churchgate slow(all originating at adh)
8,9:vasai,virar fast locals(all originating/terminating at adh)
6,7 are harbour line pf's
1,2,3,6,7 are used exclusively by local trains
4,5,8,9 are used by fast locals and outstation trains