While going from Padmanabhanagar in the Uttarahalli main road, first you'll reach the dead end OR Uttarahalli Circle. Take Left here. Go straight for about 0.5 kms and you'll see Police station on left side.

Map / Physical Location:
http://wikimapia.org/656814/Subramanyapura-Police-Station

Bangalore Police Control Room Numbers are:
Bangalore Police Help Line (24/7): 100
Bangalore Traffic Police Help Line (24/7): 103
Elders Helpline - Call 1090
Makkala Sahayavani (Childrens Helpline) - Call 1098