Received mail from bank regarding Cryptocurrencies

I did trade in cryptocurrency till it was not declared illegal in India. Now I have some currency in Koinex (Indian CC trading platform) but I'm not active on it for a very long time. What should I do?

Dear __________,
Caution Advice for account number ending _______ dealing in Virtual Currency.
We have observed that Virtual Currency transactions are reflected in your account and, as per RBI guidelines it is not permitted, thus
1: Kindly clarify the nature of these transactions by visiting the nearest branch within 30 days from date of this letter.
2: In case we do not hear from you, the bank will be constrained to restrict transactions in your account without any further reference to you.
To comply with the regulatory guidelines (RBI vide guidelines DBR.No.BP.BC.104 /08.13.102/2017-18 dated April 06,2018), the Banks are advised to exercise due diligence by closely examining the transactions carried out in the account on an ongoing basis to caution users, holders and traders of Virtual Currencies (VCs) including Bitcoins regarding risks.
RBI has also highlighted that Regulated entities shall not deal in VCs or provide services for facilitating any person or entity in dealing with or settling VCs and banks need to exit relationship with such customers.
For any further clarifications, you are requested to contact your nearest _____ Bank branch.

You need legal advice. Probably not a good place to ask.

VPN -> Transfer coins to some other exchange -> claim your acct was hacked

Withdraw the balance first to another account.

1. You should go to a CA or layer who has interest in the Crpto and knew about it.
2. If you want to reply the latter by own, research about the gov rules, and make a list and description about the TX in your account.

3. Visit your bank branch and try to get further clarification about this latter, Ask about if anyone else has got this, What should I include in reply, and more things you can think of.

If I could, I would take the money out of that account and close the account and reply to notice.

By chance, it is Kotak bank or some other bank?

Remember
I am not a Professional!

get a reliable cheap post address in EU, register in binance, bittrex or whereever you want and carry on trading..

why do you need to register an address? I believe that exchanges do share data with various institutions > you might want to have a clean account without any Indian addresses in the history. I would be careful with giving just any address - new legislation are coming in and I'm sure that soon they will be checking the addresses as well. In the UK you can get some addresses really cheap - the further from central London, the cheaper. But, do read the terms and conditions first > many take the first deposit and then start requesting proofs of having an address in the same country.

whatever you do > do not leave trace to your ip nor real address.

be safe

The crptocurrency balance in Kointex is not worth too much. It's just that I got this message because I did trade in cryptocurrencies earlier (when it was still not illegal or legal in India). Can I ignore this mail and wait till they send a notice? As this might just be a normal check.