Context
India and Singapore has announced to link their payment apps, namely UPI and PayNow which will allow instantaneous and low-cost money transfers between the two countries.
About
About the move:
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 Singapore has now become the first country with which cross-border Person to Person (P2P) payment facilities have been launched.  | 
Significance:
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 FINTECH or financial technology refers to the technological innovation in the design and delivery of financial services and products.  | 
Unified Payments Interface (UPI):

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 PayNow 
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Authorities concerned:
Verifying, please be patient.