Bharat Petroleum [BPCL] — cheating in quantity measure

Address:

Hyderabad, Andhra Pradesh, 500081

Bharat petroleum: cyberabad filling station, hitech city
(Between kphb and cybertowers road)

On the way to my office, i noticed that my bike is having fuel to the minimum. So drove it to cyberabad filling station (Bpcl) petrol pump, asked the delivery person to fill full tank. He filled it to the brim, the petrol meter showed 18.4 liters.

I suspected something wrong, i usually take bill to calculate my mileage. But in a hurry i paid by card, took a picture of meter reading and left the place.
But later i realized that my bike pulsar 150 is with fuel tank of 15 liters, but how come he filled 18 liters in it. I confirmed that they are doing this fraud since so long.
I am a regular customer of that bunk since 2 years, every time i calculate my mileage based on the meter reading and thought my bike is giving less. But now i confirm the fraud, i wish i never went there, such a cheater company. I did not get chance to visit that place again, before that i am going to write the complaint here and let the management know. I have evidence of the meter and my cc counter foil (Attached)