The rise of micro-ATMs in semi-urban and rural areas: How do they work?

These easy to deploy, cost-effective devices that are akin to a point-of-sale terminal have mushroomed in India's semi-urban and rural areas

The number of micro-ATMs increased to 15.59 million in February this year, up by 83.19 per cent from a year ago, with the value of transactions at Rs 25,483 crore, up by 2.3 per cent — underscoring that cash is still a much-preferred medium of exchange.
 

Micro-ATMs are devices that are akin to point-of-sale terminals, and are used by business correspondents (BCs) of banks to authenticate customers’ transactions.  The basic transaction types are deposits, withdrawals, fund transfers, balance enquiries and mini-statements. 
 

How do they work? Assume you want Rs 2,000 in cash from a BC (a kirana store, or any