Among the accused were employees of a private company which had the contract of refilling cash in the bank's ATMs.
The theft took place on the intervening night of March 11 and 12 at the ATM at Anjur Phata, said senior inspector S D Jadhav.
Bank officials registered a case at Narpoli police station.
During the probe, police suspected involvement of someone who knew the password of the ATM's cash box.
After questioning employees of the private company who had refilled the ATM, police arrested Vikas Yede, Suresh Kokitkar, Vinod Varade, Nilesh Gotipamul, Mohan Zanze, Rajesh Phulpagare and Irfan Khayum Khan, inspector Jadhav said.
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