“Doosra is simply a virtual mobile number, which can help protect the user’s privacy. You go to a shop or a restaurant, and at the end the business wants a mobile number from you. Instead of fighting out over why a mobile number needs to be shared, one simply shares the Doosra number, which is a virtual one. You gave them a Doosra mobile number. Regarding messages which come to the Doosra number, Vuchi said the service encrypts these and then forwards them to the user’s Doosra account.
Source: Indian Express November 16, 2020 07:41 UTC