520b — The best online betting with 24/7 support in Bengali, where the joy of winning is with you every moment
Start from just ৳500 via bKash, Nagad and Rocket. Cricket betting, live casino, slots — all on one platform. Round-the-clock live chat support in Bengali.
520b — Bangladesh's Trusted Betting Destination
520b was built with a simple goal — to create a safe, fast and easy-to-use platform for Bangladesh's cricket fans and online gaming enthusiasts, where they can access services in their own language. From Dhaka to Chittagong, thousands of players from every corner of the country transact safely on 520b every day via bKash and Nagad.
We believe online betting should be transparent, responsible and enjoyable. That is why we always follow fair play principles, keep your information secure with SSL encryption, and stay ready to provide instant support in Bengali whenever you need it.
Whether it is live match betting during the BPL season or spinning the reels on a Pragmatic Play slot, 520b is your one destination for all entertainment. Our platform is built with a mobile-first design, so you can play effortlessly from any Android phone.
Get a 150% Bonus on Your First Deposit
As a new member, 520b gives you a 150% bonus on your first deposit, up to ৳10,000. That means depositing just ৳1,000 gives you a total of ৳2,500 — ৳1,000 yours and ৳1,500 as a bonus. Larger deposits earn even more, for example depositing ৳14,000 gives you a ৳10,000 bonus for a total of ৳24,000.
The wagering requirement on the bonus is just 20x — one of the most competitive terms in the market. Deposit via bKash, Nagad, Rocket or Upay and the bonus will be credited to your account automatically.
Get started in just 4 steps
From registration to withdrawal — the entire process is simple and fast.
Sign Up
Create an account in 30 seconds with your mobile number. No complicated details required.
Deposit
Deposit from just ৳500 via bKash, Nagad, Rocket or Upay — credited instantly.
Play and Enjoy
Cricket betting, live casino, slots or crash games — play whatever you like.
Withdraw
Request a withdrawal from ৳800 — it will reach your bKash account within just 5 to 30 minutes.
The Most Popular Games Right Now
Hand-picked games from top providers — slots, fishing, crash and much more.
Ready to Win Big?
Join 520b today and claim your 150% welcome bonus. Instant deposits via bKash and Nagad.
Register Now
Fast Withdrawals — In Just 5 to 30 Minutes
Withdrawals at 520b do not mean long waits. Within just 5 to 30 minutes of making a request, the money arrives in your bKash, Nagad or Rocket account. Bank transfers follow the same fast process.
Cricket Betting Markets Guide
BPL, IPL or T20 World Cup — place your bet on your preferred market in any match.
Match Winner
Which team will win the match. Example: Bangladesh Tigers vs India — you placed your bet on Bangladesh.
Toss Winner
Bet on which team will win the toss. The result is decided before the match begins.
Top Batsman
Which batsman will score the most runs in the match — settled by the scorecard at the end of the innings.
Total Runs Over/Under
Whether the total runs in a complete innings will be above or below a set number — for example: over 170.5.
Runs in Over
How many total runs will be scored in a specific over. This is very popular in live betting.
Player of the Match
Who will receive the Man of the Match award — odds are better when you bet before a big performance.
Live In-Play Odds
Odds change in real time with every wicket or six. Quick decisions on live markets can be advantageous.
World-Class Game Providers
Play games from leading developers including Pragmatic Play, PG Soft and JILI on 520b.
Pragmatic Play is one of the world's most popular slot and live casino providers. Their games are known for sharp visuals and bonus features.
PG Soft specialises in mobile-first slots. Their Asia-themed games are very popular among Bangladeshi players.
JILI offers a large collection of slots, fishing games and table games. Their fishing games are very popular across South Asia.
Evolution Gaming is the leading provider in the live casino segment. Live roulette, baccarat and blackjack with real dealers are available.
Spribe is the pioneer of crash games. Their Aviator game has made an impact among millions of players worldwide.
Microgaming is one of the oldest and most trusted names in the online gaming industry. Their progressive jackpot network is world-renowned.
Weekly Cashback Rates
The higher your VIP tier, the more weekly cashback you receive. Credited automatically every Monday.
| VIP Tier | Weekly Cashback |
|---|---|
| 🥉 Bronze | Up to 0.2% |
| 🥈 Silver | Up to 0.3% |
| 🥇 Gold | Up to 0.5% |
| 💎 Platinum | Up to 0.6% |
| 👑 Diamond | Up to 0.8% |
Terms and Conditions:
- Cashback is credited to your account automatically every Monday.
- Cashback applies to real money bets only.
- Cashback amounts are directly withdrawable with no wagering requirement.
520b VIP Benefits
- Weekly Cashback
- Priority Support
- Exclusive Promo Access
- Enhanced Cashback
- Faster Withdrawals
- Birthday Bonus
- Higher Cashback
- Priority Withdrawals
- Exclusive Tournaments
- Dedicated Support
- Maximum Cashback
- Personal Account Manager
- Exclusive Events
- Fastest Withdrawals
Play more, bet more, and move up to higher tiers automatically — no application needed.
Aviator — How the Crash Game Works
Each round in the crash game starts with a multiplier at 1.00x, which gradually increases — just like a plane taking off. Your job is to hit the cash out button before the plane crashes.
If you cash out in time, your bet amount is multiplied by that multiplier and returned to you. But if you wait too long, the entire bet is lost.
Aviator has an auto cash out feature that lets you set in advance at which multiplier to cash out. Each round ends within a few seconds to a few minutes, making it ideal for fast-paced entertainment.
Warning: Set a loss limit for yourself before you start playing and do not exceed it. Do not trust any 'signal' or 'prediction' software for crash games — these are scams.
RTP and House Edge Explained
What is RTP (Return to Player)?
RTP, or "Return to Player", is a percentage that indicates how much of the total money wagered on a game is likely to be returned to players over the long term. For example, if a game has an RTP of 96%, it means that theoretically an average of ৳96 may come back for every ৳100 bet. However, this is not a guarantee — it works as an average across millions of rounds.
Typical RTP Ranges Across Different Games
RTP varies across different games. Slot games typically have an RTP between 92% and 98%, though the exact rate differs by provider data for each specific game. Table games like blackjack can reach an RTP of close to 99% when played with the correct strategy. Roulette generally has an RTP between 94% and 97% — slightly higher in the European single-zero variant.
What is House Edge?
House edge is the flip side of RTP — it is the amount a casino or betting platform keeps on average from each bet over the long term. If the RTP is 96%, the house edge is 4%. It is not deducted directly from every bet; rather, it is a statistical advantage that becomes apparent across a very large number of rounds.
Why Is It Important to Know This?
Understanding RTP and house edge helps you become an informed player. Choosing games with a higher RTP theoretically gives your balance a better chance of lasting longer. Keep in mind, though, that luck plays a role in the short term — RTP is not a guarantee of winning. Play responsibly and play for entertainment.
How to Read Odds
Knowing how to read betting odds is essential for every player. 520b uses decimal odds — these are the easiest to understand.
Decimal Odds Example
You placed a ৳500 bet at odds of 1.80.
Total return = ৳500 × 1.80 = ৳900
Profit = ৳900 − ৳500 = ৳400
Implied Probability
Odds of 1.80 mean the platform considers the probability of this outcome to be approximately 55.6%.
Formula: (1 ÷ Odds) × 100 = (1 ÷ 1.80) × 100 = 55.6%
| Format | Example | Meaning |
|---|---|---|
| Decimal | 2.50 | ৳250 returned on a ৳100 bet |
| Fractional | 6/4 | ৳6 profit on a ৳4 bet |
| American | +150 | ৳150 profit on a ৳100 bet |
Why Thousands of Players Choose 520b
Speed, security, and Bangla support — three reasons 520b is the number one choice in Bangladesh.
Instant Payments
Withdrawals via bKash and Nagad in 5–30 minutes — not a promise, but a reality.
SSL Protection
Your data and transactions are secured with the highest level of encryption.
24/7 Support in Bengali
Live chat in Bangla even at 3 AM — we are always here for you.
Cricket Specialists
BPL, IPL, T20 World Cup — the best odds on every match.
Mobile-First
A smooth experience on any Android phone — app or browser.
Generous Bonuses
150% welcome bonus, weekly cashback, and VIP benefits.
Fair Play
Games from verified RNG providers — transparent and fair results.
VIP Culture
5 VIP tiers — recognition for your loyalty.
520b App — Play Anywhere
Stuck in Dhaka traffic or wandering through the tea gardens of Sylhet — the 520b app is always with you. The lightweight app runs on minimal data, so deposit with bKash and place bets on live cricket matches in an instant.
Install Guide (5 Steps)
- Download the APK file only from the official 520b website.
- Go to Android settings and enable the "Install from unknown sources" permission.
- Tap the downloaded APK file to install it.
- Open the app and log in to your account.
- For security, turn off the "Install from unknown sources" setting again.
Minimum Requirements: Android 7.0 or a newer version, approximately 100 MB of free space.
Warning: Never download the APK from Telegram or Facebook groups. Only download from the official site.
Beware of Fake Sites and Scams
Fraudsters are active in the online betting world. Follow the checklist below to stay safe at all times.
- Verify the official domain: Always check that the address in your browser is 520b.lat and that https:// appears at the front.
- Do not share your OTP: If anyone asks for your bKash or Nagad OTP — even if they claim to be 520b support — do not give it.
- Never share your password: Our official support will never ask for your password.
- Beware of Telegram/Facebook 'agents': People who contact you on social media posing as agents are often scammers.
- If you suspect fraud: Change your password immediately and contact 520b live chat.
- APK only from the official site: APKs downloaded from third-party sites or messaging apps may contain malware.
We Are Always By Your Side
Getting support at 520b is easy. You can reach us through two channels for any question or issue.
24/7 Live Chat
Ideal for instant support. Get fast solutions in Bangla for payment issues, bonus questions, and anything game-related.
Available Around the ClockEmail Support
For detailed documentation, account verification, or complex matters. Email us at:
Privacy Policy
520b places the highest importance on protecting your personal information. We use SSL encryption and your information is never shared with third parties without your permission. Your registration details, financial transactions, and gaming history are completely confidential.
For more details, visit our Privacy Policy page.
Legal Notice & Responsible Gaming
Important Legal Information
520b is an online platform that provides betting and casino services via the internet. We do not claim any specific license or regulatory approval.
The Public Gambling Act 1867 applies in Bangladesh, enacted in 1867 and created before online betting existed. Whether this law directly applies to online gambling is legally unclear.
Users bear the responsibility of being aware of their local laws and making decisions accordingly.
Age Restriction: 520b is for users aged 21 and above only. Access by minors is strictly prohibited. To learn more about responsible gaming, visit our Responsible Gaming page.