No need to mention that banks are already on this, they are deliberately active on freezing accounts for whatever reasons.
But unfortunately this time, court is here to back them to do the same on their own discretion. It means,
no need of any official complaint. If a bank employee feels about any suspicious transactions in a bank account, they may go for freezing the balance from withdrawing.
For more information, please follow this link:
https://www.livelaw.in/high-court/kerala-high-court/guidelines-freezing-suspicious-accounts-rbi-frame-sop-310857
I am seeing this as just another reason that I must work on full fledged to live a life without any bank account. I am sure that it would be nearly impossible still may need to explore more methods to find out the possibilities.
One possibility would be buying gift cards for crypto and using them for groceries and daily needs. (We can do this with amazon, swiggy instamart and big basket).
If you are into a day job, withdraw all your salary just after the credit of it and use cash everywhere and do P2P for crypto buying from your colleagues.