Pune Traffic Police — I'm complaining about traffic police officer related to e challan

First of all me and my husband going for vaccination in wipro Hinjewadi pune .because of lockdown we doesn't know the route we open the maps. We follow the directions after that crossing the signal about 1-2kms there is the bunch of traffic police officer they stop us and tell this is the one way road they took driving licence and cut the challan and tell there is a board on traffic signal and we take a u turn there is a no boars i have questions if board will do there work then why traffic police officer is hire ????
Traffic police officer is duty on traffic signal not in the highway there no any chance to get work how i will pay the e challan