There is a strong counter argument that most of the modes of digital payment require net connectivity or smartphone. To fix this issue, govt launched *99# banking service. It is USSD (Unstructured Supplementary Service Data) based mobile banking that does not require a smartphone or the internet. You can access mobile banking on a basic handset and is provided free of cost.
The backbone of *99# banking service is IMPS. You can transfer funds through either MMID & Mobile No or Account No and IFSC code. I used it is simple and convenient.
*99# service has been launched to take the banking services to every common man across the country. Banking customers can avail this service by dialling *99#, a “Common number across all Telecom Service Providers (TSPs)” on their mobile phone and transact through an interactive menu displayed on the mobile screen. Key services offered under *99# service include, interbank account to account fund transfer, balance enquiry, mini statement besides host of other services. *99# service is currently offered by 51 leading banks & all GSM service providers and can be accessed in 12 different languages including Hindi & English as on 30.11.2016 (Source: NPCI). *99# service is a unique interoperable direct to consumer service that brings together the diverse ecosystem partners such as Banks & TSPs (Telecom Service Providers).