ЁЯЪА INDIA'S COMPREHENSIVE FREE CBT EXAMINATION PORTAL

BR DOT HUB тАФ Smart Competitive Exam Preparation Platform

Empowering students preparing for Railway (RRB ALP, Technician Grade 3, Group D, NTPC), SSC (CGL, CHSL, MTS, GD), Bihar Examinations (Bihar Daroga, Police, BPSC, BSSC), and State PCS with 100% free online CBT mock tests, instant bilingual evaluations, daily speed quizzes, and high-yield revision notes. Founded by Niraj Kumar in Bihar Sharif, Nalanda.

ЁЯОп Explore Mock Tests & Quizzes тД╣я╕П About Our Mission

Core Platform Architecture & Methodology

BR DOT HUB is built on high-speed static architecture with zero bloated trackers, delivering instantaneous CBT test loading, seamless offline PWA practice, and psychometrically calibrated question sets.

тП▒я╕П Live CBT Exam Simulator

Exact replica of TCS iON exam interfaces with countdown timers, question palettes, sectional jumping, and official negative marking.

ЁЯМР Bilingual Hindi & English

All questions, option sets, answer keys, and step-by-step explanations are professionally curated in both Hindi and English.

ЁЯУК Deep Telemetry & Analysis

Instant generation of All-India rank percentiles, speed vs. accuracy curves, subject time heatmaps, and personalized revision alerts.

ЁЯУ▒ Offline PWA Technology

Download tests, quizzes, and formula sheets directly to your device storage to practice anywhere with zero internet connectivity.

ЁЯУЭ Featured Computer Based Tests (CBT)

View All Tests →
gkgsTop50

TEST 1 | GK/GS Top 50

Attempt CBT Test →
gkgsTop50

TEST 2 | GK/GS Top 50

Attempt CBT Test →
gkgsTop50

TEST 3 | TOP 50 GK/GS

Attempt CBT Test →
gkgsTop50

TEST 4 | TOP 50 GK/GS

Attempt CBT Test →
gkgsTop50

TEST 5 | TOP 50 GK/GS

Attempt CBT Test →
indianAtlas

рднрд╛рд░рддреАрдп рдПрдЯрд▓рд╕ рдореЙрдХ рдЯреЗрд╕реНрдЯ: рдЬрдореНрдореВ-рдХрд╢реНрдореАрд░ рдФрд░ рд▓рджреНрджрд╛рдЦ

Attempt CBT Test →
math25

Math Practice Set 1 | Railway , SSC, State Police

Attempt CBT Test →
math25

Math Practice Set 2 | Railway , SSC, State Police

Attempt CBT Test →

тЪб Rapid-Fire Speed Quizzes & Current Affairs

View All Quizzes →
default

Bihar Gk 25

Start Speed Quiz →
default

Current Affairs Weekly

Start Speed Quiz →
current_affairs

27feb 06Mar Ca2026

Start Speed Quiz →
current_affairs

MarquizTest2

Start Speed Quiz →
current_affairs

Set03MarCa

Start Speed Quiz →
current_affairs

Set04MarCa

Start Speed Quiz →
current_affairs

Set05MarCa

Start Speed Quiz →
current_affairs

12 19july2026ca

Start Speed Quiz →

ЁЯУЪ High-Yield Revision Notes & Formula Compendiums

Browse Notes →
default

General Science Physics

Read Revision Notes →
default

Geography River Systems

Read Revision Notes →
default

Indian Economy Short

Read Revision Notes →
default

"Indian Polity & Constitution: Master Articles, Parts & Amendments Capsule"

Read Revision Notes →
default

"Quantitative Aptitude: 15 High-Speed Math Shortcuts & Formulas"

Read Revision Notes →
default

Maths Formulas

Read Revision Notes →
default

Indian Polity - Fundamental Rights (Articles 12 to 35) & Writs Architecture

Read Revision Notes →
default

"Railway General Science Complete Blueprint & High-Yield Capsule"

Read Revision Notes →

ЁЯУ░ In-Depth Editorial Articles & Exam Strategy

Read All Articles →
default

Current Affairs Isro

Read Article →
default

Gaganyaan & Beyond: India's Manned Spaceflight Mission & 2026 Space Roadmap

Read Article →
default

"The 3-Round Strategy: How to Attempt 100 Questions in 90 Minutes with 90%+ Accuracy"

Read Article →
default

Indian History Freedom

Read Article →