Facebook-owned instant messaging app WhatsApp has launched its new feature by which users can send, receive money. The new feature is based on UPI. The new WhatsApp update is a boost to PM Narendra Modi's 'Digital India' initiative launched on July 1, 2015 and urged the people of the country to switch to the digital mode of payments. Following the initiative, many top companies had launched various platforms to boost PM Modi's digital India. After BHIM and Tez, the Facebook-owned instant messaging app WhatsApp recently launched out a new update that integrates a digital payments feature based on unified payment interface (UPI). BHIM and Tez are also based on UPI. So how exactly is 'Unified Payment Interface' (UPI) going to work on BHIM, Tez and WhatsApp. WhatsApp Payments: The instant messaging app has rolled out a new feature which for Android and iOS users. The new update will allow its users to send, receive money from friends and families. The new update is based on UPI and was recently launched in India. However, if the subscriber recently updated WhatsApp but did not get the option, they can enable it by receiving a WhatsApp message from a user who has received the update and has the payments feature activated. It is important to note that the payments feature can be activated only from the mobile number that is linked to a bank account. Once the feature is activated, the instant messenger allows transfers of payments to individuals via direct message. The payments feature can also be used in group chats. However, the user would need to identify the individual from the group before processing the payment. there are other apps too that can be used to send or receive money through UPI. BHIM (Bharat Interface for Money):\u00a0It is a mobile app developed by National Payments Corporation of India (NPCI) and is based on UPI. The app lets its customers choose from the preferred bank. When you sign-in, the app will ask to select a relevant bank. If unified payment interface is activated it will show the relevant account number and the user can also see the option to send, receive money through IFSC code. However, if UPI is not activated, there is no need to worry. Users can put in six digits of their debit card and the expiry date. Then, the customers create a UPI pin. Once done, the app will let you perform the needed functions. Tez App: Tez is a mobile payments app by Google and operates based on UPI. Tez is also developed by NPCI. The app lets the customers transfer money to family, friends and businesses. Since it relies on UPI (United Payments Interface) the amount is debited directly from the account, which is synced with the app.