State Bank Of India [SBI] — atm fraudulent transactions

Dear sir,
This is to inform you that on 2nd october 2016 while i was travelling by flight no. 6e 678 of indigo airlines from patna to new delhi, some unknown person withdrew cash rs. 50, 000 in five transactions from my saving account through some atm located in basai road, gurgaon. I was in the flight when all transactions were made and my debit card was also in my posession. I came to know about this incident only when i landed at new delhi airport around 1100 hrs and the atm transaction by the culprit was done around 1039 hrs.
Sir i being govt official, was travelling back to join duties after completion of my leave. I had to reach my duty station on the same day. Therefore i had already booked the flight from new delhi to nagpur with departure time of 1450 hrs.in the prevailing circumstances i did not opt to go out of the airport and lodge a complaint to the local police station at new delhi and i continued my journey from new delhi airport to my duty station.
Sir i also want to inform you that on the day of incident i had paid rs. 1700 through my debit card on the indigo airlines counter at patna airport, bihar towards extra luggage charge. While check in at the airport the executive whose name i donot remember took my debit card for making the payment and he swapped the card twice and made me to enter the pin each time. When i asked him before the second swapping he stated that there was some connection problem and payment could not be made. He then handed over the card to the lady executive over there and asked her to enter the card information in his system. I again enquired but the lady executive held my card for 4-5 minutes and asked me to wait. She then returned me my debit card and thereafter i borded the flight for new delhi. This was the first and the last transaction which i had made personally. With regard to extra withdrawal of rupees 50, 000 from my account i was unaware until i reached new delhi airport when my wife called me to inform and she sent me transaction messages delivered to her registered mobile number.
I at my level best tried to enquire to the indigo executives at new delhi airport regarding this incident but nobody even listen properly and believed this incident. Sir, i immediately contacted sbi executives and complained about the same but they did not respond appropriately and told me that since it was atm withdrawal so they can not help me. They even did not believe about this kind of theft/fraud. They remained reluctant to believe that i had all the proof that during the said transactions i was in the flight of which i still have all documentary proof.

Sir being a govt official presently posted at srinagar, j & k where there is lot of difficulties in making any communication/ correspondence with rest of the world in appropriate time.

Sir i request you to please condone this delay and register my complaint and take necessary action in this matter so that i can get back my hard earn money. I also want that the person involved in this case be brought to the court of justice and they must be stopped from making more people victims of such crimes at prime location like airport.
(Fir in this matter was lodged at patna air port police station in october 2016, however no action till date taken)

Regards
Rahul kumar