Exam Prep Platform
EdTech
Bilingual Exam Engine & Realtime Assessment Platform
This platform is a high-concurrency competitive exam platform built for law and judiciary entrance aspirants. It features a drift-proof, server-anchored exam countdown, bilingual question and passage rendering, auto-scoring with negative marking, and an AI-driven question paper upload pipeline.
Key Features
●
Drift-Proof Server-Anchored Countdown
Timer continuously recalibrates against the server timestamp, surviving browser refreshes and disconnects, and auto-submits on expiry.
●
Bilingual Question & Passage Engine
Parallel two-language content schema with fallback, rendering long comprehension passages beside dynamic questions.
●
Per-Click Response Upsert & Review Machine
Instantly saves student responses to MongoDB with clear states: Attempted (green), Marked for Review (yellow), and Unvisited.
●
Automated Scorecard & Penalty Calculations
Instant score generation applying +1.0 for correct and −0.25 negative penalties, with detailed accuracy and time analysis.
●
AI Question Paper Ingestion Pipeline
Ingests raw text/PDF papers, auto-extracting sections, passages, and options via structured JSON schemas and live progress streams.
●
Integrated Payments & Course Gating
Native payment gateway integration gating nested folders, mock series, and evaluations with zero content leakage.
Preview
Technical Specifications
Frontend Architecture
React 19, Redux Toolkit, Tailwind CSS
Backend Infrastructure
Node.js, Express, MongoDB, Mongoose 8, Redis
Timer Precision
Absolute drift-proof timestamp delta with auto-submit protection
Scoring Engine
+1 / −0.25 instantaneous negative marking calculator
Content Schema
Bilingual question schema with passage join maps
Payment Gateway
Payment intent flow with webhook reconciliation
Customer Story
Customer story
“We went from spending days manually typing bilingual question papers to uploading complete 150-question mock tests in minutes, with zero timer-drift complaints.”
Law & Judiciary Entrance Coaching Institute
18,900+ Finished Tests, 1,480+ Enrolled Aspirants