"From 90 days of issue of these instructions, ensure that the App based Communication Services is continuously linked to the SIM card (associated with Mobile Number used for identification of customers/users or for provisioning or delivery of services) installed in the device, making it impossible to use the app without that specific, active SIM."

https://scroll.in/article/1088890/why-indias-telecom-department-has-mandated-sim-binding-for-whatsapp-some-other-app-services

My preliminary reading is that @prav would have to comply, but I also read the govt has sent these only to some apps.