After getting down from Train at SC. If u have to go towards Banjara hills-Mehindipatnam Use the main Exit on Pf1 an dcatch buses from there.
If you want to go towards ECIL-Kushaiguda then Exit through the Ratifile Exit on Pf1 and you will get buses at Ratifile bus stop
If you are gong towards Uppal-Dilshuknagar-Hayatnagar exit through pf10 and walk a bit towards bus stop