1. Home
  2. Register
Bangladesh's #1 Platform

Join a21 —
Thrill in Every Bet

Complete registration in just 3 minutes and join millions of gamers across Bangladesh. Get an attractive welcome bonus on your first deposit.

Welcome Bonus

100% bonus on your first deposit, up to ৳5,000

Instant Access

Start Betting & Gaming Right After Registration

Mobile Banking

Easy deposits and withdrawals via bKash, Nagad, and Rocket

Safe & Trusted

SSL Encryption & 24/7 Bangla Support

★★★★★
"Signing up at a21 took me just 3 minutes. I got my welcome bonus on day one, and payments via bKash are super fast!"
Ra
Rafiul Islam
Chattogram, Bangladesh
Free Registration

Create New Account

Already have an account? Log In

Step 1: Basic Information 1 / 3
Enter Your Details
Please provide accurate information when registering.
Name is required.
+880
Please enter a valid mobile number.
This number will be used for OTP verification.
Please enter a valid email address.
You must be at least 18 years old.
Registration is open to individuals aged 18 and above only.
Password & Preferences
Create a strong password.
Password must be at least 8 characters long.
Passwords do not match.
Enter a friend's code and you both get a bonus.
Please check both boxes to proceed.
Mobile Number Verification
Enter the 6-digit OTP sent to your mobile number.

OTP Code sent to your number. If you didn't receive the code, 60 Seconds to resend.

Registration Successful! 🎉

Welcome to a21! Your welcome bonus is ready. Make your first deposit now and start playing.

🎁 Welcome Bonus
100%
First Deposit Bonus — Up to ৳5,000
Sign In View Betting
SSL Secured 18+ Encrypted 24/7 Support
Why a21?

What You Get When You Join a21

Millions of Bangladeshi members are already enjoying it — now it's your turn

100% Welcome Bonus

Get a 100% bonus on your first deposit after registration — up to ৳5,000. Use the bonus to start betting, and any winnings are yours to keep.

Thousands of Games & Betting Markets

From cricket, football, and kabaddi to lottery and casino — a21 brings all kinds of entertainment together in one place.

BKash / Nagad / Rocket Payment

Deposit and withdraw easily via Bangladeshi mobile banking. Transactions are typically instant — no hassle.

Live Betting & Real-Time Odds

Place live bets while the action unfolds. Make smarter decisions with real-time odds updates and live statistics.

24/7 Bangla Support

We're always here to help. Reach us in Bengali via live chat, email, or phone — our support team is ready around the clock.

Regular Promotions & Rewards

The rewards don't stop after your welcome bonus. Keep enjoying reload bonuses, cashback, free bets, and VIP perks.

How to Register — Just 3 Simple Steps

Quick and easy registration — done in just 3 minutes

1
Fill In Your Details

Fill in the form with your name, mobile number, email, and date of birth. Providing accurate information is mandatory.

2
Create Password

Create a strong password and agree to the terms. Have a referral code? Enter it here.

3
Verify OTP

Enter the 6-digit OTP sent to your mobile to complete registration, then claim your welcome bonus!

🎁 For New Members
৳5,000
Welcome Bonus up to
  • 100% Bonus on First Deposit
  • Minimum deposit of just ৳500
  • Complete wagering requirements within 30 days

On your first deposit after registration to receive the bonus Welcome Bonus Activate this option. Learn more Terms & Conditions Read.

Yes, registering at a21 is completely free — no registration fee whatsoever. Once your account is set up, you can make a deposit and start betting whenever you're ready.

No. Under a21's policy, each person may only hold one account. If multiple accounts are detected, all of them will be suspended.

Once your account is activated after OTP verification, you can start betting right away. Simply make a deposit and place bets in any category you like.
About Registration

Register at a21 — Start Bangladesh's Best Betting Experience Today

Signing up with a21 isn't just opening an account — it's joining Bangladesh's biggest online betting community. Registering with us is the start of a relationship where you get a safe environment, fast payments, and round-the-clock support in Bangla.

Many people assume signing up on an online platform is complicated or time-consuming. At a21, that couldn't be further from the truth. Our registration process is so straightforward that it's done in just 3 minutes — no paperwork, no office visits, no long waits.

Providing accurate information during registration is crucial. Your details are used for identity verification and payment processing — any errors could cause issues with withdrawals. Make sure to enter your correct name, mobile number, and date of birth from the start.

The minimum age to register on a21 is 18. This isn't just a rule — it's our commitment to responsible gaming. Our platform is strictly off-limits to minors. We urge parents and guardians to keep household devices secure.

Once registered, you'll have full access to everything a21 has to offer. Place live bets on cricket matches, try your luck with the lottery, explore new games — all in one place. And your first-deposit welcome bonus makes the experience even more exciting from the very start.

Have a friend or someone you know already on a21? Use their referral code — both you and your friend will earn extra bonuses. It's the perfect way to join the referral program.

A21 keeps your personal information completely secure. To learn more, visit our Privacy Policy Read.

Registration Eligibility
  • Minimum Age 18 Years
  • Active mobile number (required for OTP)
  • Valid Email Address
  • One Account Per Person
  • Agree to Terms & Conditions
Payment Methods
bKash
Nagad
Rocket

Instant deposits and fast withdrawals. Minimum deposit is just ৳500.

🚀

Register today — don't miss out on your bonus!

Complete your a21 registration in just 3 minutes. Welcome bonus, live betting, and Bangla support — all in one place.

Register for Free Already have an account
বাংলা