In many Metro Cities you will find this type of ATM unattended. So attacker uses this type of ATM for their attack. They used to open ATM machine and try to get cash directly.
See this video how attacker do this type of things.
Step 1:- Search for any Guard of that ATM machine is you found the ATM Machine opened.
Step 2:- Inform the Government Agency like Police Station, Metro Staff, or any legal Authority for this type of ATM.
Step 3:- Inform CYBER CERT is required at +91-9680100687