Indian Oil Corporation [IOC] — I got 50 rs petrol for 100 rs.

Address:

East Godavari, Andhra Pradesh, 502032

I went to a Indian Oil petrol pump opposite to Sri Bakers at Ashok Nagar, RC Puram, Hyderabad, 502032 on 30 Apr 2017 at around 3:30 PM. One customer before me got 50 rs petrol filled. Then, it was my turn. I told the petrol filler guy to fill 100 rs petrol and was staring at the meter reading. Then, he asked me if I wanted 110 rs petrol. Although it was a stupid question, I turned my head at him to answer the question. In the mean time, he started the petrol filling gun. I immediately looked at the reading meter. It was showing 53 rs. It was all done. I was cheated. I asked him the same. He answered me recklessly. I couldn't get justice. Is there a way to punish him?