Update: In Adguard turn the blocking method to NXDOMAIN so it won’t give this error. It still gives a warning that “you’re using a VPN”. Edit: I am on iOS 26.
Broader Context: All Indian Banking apps have been instructed to not allow the use of VPN slot while using a banking app. The Central Bank has also ordered to disallow usage if Developers Options are turned on. Apart from that globally all banking apps require Google Play Services and Boot-loader to be locked. I also found on some reddit post that they are not allowing the use of a 5 year old + phones for banking.


Maybe I do not understand the vector here, but I think you should be able to use a DNS filter log, like a whitelist firewall. Use the log to see what servers are blocked when you try to open the app. Then just whitelist those servers.
The proper argument is not for Ad Block. That is just a lazy hack. The proper argument is that you have a right to a front door on your home – a digital front door, a right to lock it, and a right to decide who may enter your home. This is what a DNS whitelist filter does. If you are not allowed to use a DNS whitelist, your home has had the door ripped off and are being forced to allow stalkers, thieves, and slavers into your home to manipulate and exploit you. Never talk about ad block. That is politically irrelevant. I do not care if the lock on your front door in the real world has great pick resistance. It is just as much a symbol as it is a device. The primary reason for losing rights is from people failing to argue well, and understand their rights like this. I am one of the few people that does DNS the hard way and run a whitelist filter.
All the blocked requests are app analytics and trackers. Whitelisting them will defeat the purpose. I might just switch to Google Pay’s UPI rather than fighting the government app or just use cash.
Also using DNS filters in a whitelist mode is very inefficient and defeats the purpose of using the internet. I don’t want to make a fool of myself in front of my friends when I am unable to figure out which domains does the restaurant’s digital menu uses so I can go and whitelist them.
You have multiple devices and networks.