Reserve Bank Of India [RBI] — less withdrawal from atm

Dear sir,
Now looking hope from your side as my bank has done fraud with me. I am a saving bank account holder at hdfc bank (Having bank account no-[protected]). On june 2nd, 2019, i used my hdfc bank atm card to withdraw inr 10000/- from canara bank atm (Indira bazaar, panipat-132103) but while dispensing money from the bank got only 4000/-.
With immediate basis i lodged a complaint with hdfc customer care against the incident happened with complaint reference no-1920945 through call as well as through their online grievance system and trying to get my hard earned money but no solution received.
Many times, i requested them to see the cctv footage of the atm to get the same closed but without doing enough due diligent, they reverted me that canara bank is not responding them regarding the same and denied to pay the less amount dispensed.
Sir, i would request you to please help me to get my hard earned money from both fraud banks.
Sir, i hope on every atm machine and cabin, cctv is been installed by the banks, which capture every transaction. But canara bank is not seen interested to show the same. You are now my last hope from where i can get my hard earned money.