GMR — valuable hard drive taken out from my luggage during security check

Please note that my 2tb hard drive also taken out from my luggage by security along with power bank on security check on 6th of november after holding my luggage while i was travelling from delhi to ranchi in air vistara. Hard drive and battery bank i have carried in the same luggage while travelling in oman air from muscat to delhi on 6th departed muscat at 0915 hrs and oman security has passed that luggage but in india security has not cleared my luggage in india and hold for security reason due to power bank was inside. I gave my luggage at least two and half hour before departure of flight. I was inside the terminal and was waiting in gate number 36. At the time of boarding only vistara person has asked me that due to presence of power bank security has held up my luggage and taken my signature in two forms. Since time was no there i signed and told the person that my hard drive is also there, please ensure that this should not be taken out. They replied that it is under full camera surveillance nothing will be taken out apart from battery bank, which is not allowed but despite of that it has been taken out.in the attached photograph both power bank (White colour e-power) and hard drive (Black colour toshiba) are shown.
Request to intervene and arrange to provide my hard drive else i may lose my international job. It is really very much critical and very much important data is there in hard drive. Its capacity is 2tb. You can understand how files and information is there.
Please help me out and arrange to return my hard drive. Extremely urgent.