Pune Traffice Police — Unnecessarily giving ticket

Date: 23-04-17 Morning around 10am
While dropping my friend at J M Road, the traffic police came and issues a ticket of Rs 200 saying you cannot stop here.
The board sign was circle with only slash - which means you can drop someone and should be in the car, whereas on the opposite side there was sign of circle with cross - which means no stopping for drop also.
When I asked the Traffic police the difference between the two signs, he said both are same.
I explained the difference and also showed on the net the difference, but he is not willing to listen and just issued e-ticket.

I do not know what to do now or where to go for this unnecessary hassle.