Secret Training to Investigate Cryptocurrencies - India

"The department also previously surveyed major crypto exchanges to collect the details of individual crypto traders."

This would, most likely be CEXes (Centralized Exchanges), and P2Ps that require KYC (LocalBitCoins, Paxful, etc). The P2Ps that don't require it, and DEXes (Uni, Pancake, and Quick Swaps, as examples), don't do KYC, because there's no "money" traded, just "crypto codes."

“Let's see a case of Bittu Sharma. He is on a local Bitcoin forum and willing to buy Bitcoin in cash near Delhi. He put his bank details and contact number there, and by investigating, an authority reveals his real name as Prashanna.”

Tax officials are using tools like Blockexplorer.com and Blockchain.info, which provide insights and search capabilities for tracking transactions in a shared public ledger or blockchain. This can lead to a user’s IP address and yield valuable information about the user’s location.