What is cryptocurrency? A plain-English guide for India
What cryptocurrency is, how Bitcoin and blockchains work, why people use crypto in India, the rules and 30% tax, the risks, and how to start safely.
You've probably heard about Bitcoin from a friend, a cricket ad or a news headline about a big price move or a hack. This guide explains what cryptocurrency actually is, how it works, how it fits into India's rules and what to watch out for, without jargon.
Cryptocurrency in one paragraph
A cryptocurrency is a digital asset you can send to anyone online without a bank in the middle. Instead of a bank keeping the record of who owns what, a blockchain keeps it: a shared ledger copied across thousands of computers around the world. Cryptography (the "crypto" in the name) secures it, so only the owner of the right key can move their coins.
How a blockchain works, simply
Imagine a notebook of every transaction that thousands of people hold copies of:
- You send 0.01 Bitcoin to a friend from your wallet. You "sign" it with your private key.
- The network checks you actually have those coins and haven't already spent them.
- The transaction is added to a new page (a block) along with others.
- Every copy of the notebook is updated. Pages are linked in order, which makes past records very hard to change.
Nobody can freeze or reverse a confirmed Bitcoin transaction, which is powerful but also means mistakes are permanent.
The main types of crypto
- Bitcoin (BTC): the first cryptocurrency, with a fixed supply of 21 million coins. Often called digital gold. See Bitcoin price in rupees.
- Ethereum (ETH): a blockchain that runs programs called smart contracts, which power DeFi, NFTs and many apps.
- Stablecoins (USDT, USDC): tokens designed to stay at about one US dollar. Widely used in India. See stablecoins compared.
- Other coins and tokens: thousands more, from large networks like Solana to memecoins with no product at all.
Why people in India use crypto
- Investing or speculating on price rises, often through monthly crypto SIPs.
- Moving money across borders, for example freelancers paid in USDT.
- Using apps in decentralised finance (DeFi), games or NFTs.
- Learning about a new technology.
Is it legal in India?
Crypto isn't banned in India, but it isn't legal tender. Key rules:
- Exchanges serving Indians must register with FIU-IND for anti-money-laundering purposes. See FIU-registered exchanges.
- Gains on selling or swapping crypto are taxed at 30% plus 4% cess, and losses can't be set off.
- 1% TDS is deducted on sales on Indian exchanges.
More detail: is crypto legal in India? and crypto tax in India.
The risks
- Volatility: prices can fall 50% or more in weeks.
- Scams: fake apps, "guaranteed return" groups and task scams are common in India. See crypto scams in India.
- Exchange risk: exchanges can be hacked or pause withdrawals.
- Your own mistakes: sending to the wrong address or network, or losing your seed phrase.
How to start safely
- Learn the basics first, using our learning path.
- Choose an FIU-registered exchange. See how to choose an exchange.
- Turn on strong security. See the wallet security checklist.
- Buy a small amount. See how to buy Bitcoin in India.
- Keep records for your ITR from day one.
Indefi is educational and never tells you what to buy. If you're unsure whether crypto suits you, speak to a SEBI-registered investment adviser.
Frequently asked questions
Is cryptocurrency legal in India?
Crypto isn't banned in India, but it isn't legal tender either. Exchanges serving Indians must register with FIU-IND, and gains are taxed at 30% plus cess. See our full guide on whether crypto is legal in India.
Who controls Bitcoin?
No single person or company. Bitcoin's rules are enforced by software run by thousands of independent computers worldwide. Changes need broad agreement among those running it.
How much money do I need to start?
Indian exchanges let you buy a fraction of a coin, often for a few hundred rupees. Only put in money you can afford to lose, since prices can fall sharply.
Is crypto the same as the digital rupee?
No. The digital rupee (e₹) is issued by the Reserve Bank of India and is legal tender. Cryptocurrencies like Bitcoin aren't issued or backed by any government.
Can crypto be hacked?
Major blockchains like Bitcoin have been very hard to attack, but exchanges, wallets and people are hacked or scammed often. Most losses come from stolen passwords, fake apps and scams, not from breaking the blockchain.
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