In the polio immunisation programme of the govt, the people usually come door to door and administer the vaccine to children below 5 years.
Apart from that, they also arrange camps in nearby government schools. You can definitely find the vaccine at all government hospitals near you.
Additionally now the government has introduced IPV that is injectable polio vaccine which also needs to be taken as a part of the immunisation schedule.
Consult a government hospital or any paediatrician near you.
Yes apart from the immunisation you also need to take polio drops which are a part of govt schemes...you can get them near public areas like bus stands,railway stations for sure apart from govt hospitals..they also come door to door checking for kids below 5 years