Complete Engineering & Campus Placement Ecosystem

From Foundations to Campus Placement Offers in One Platform

Programming tutorials & core branch subjects → aptitude & technical screening → placement DSA & coding sprints → 4-round drive simulators, AI voice interviews and ATS-ready resumes.

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Drive Simulator101 DSA SheetCompany TestsAptitudeCore CS / VivaResume ATS
  • 6 subjects
  • 6 practice modes per subject
  • Live AI voice interview
  • Progress saved across devices

Which engineering branch are you in? Pick one below and the whole site personalizes around it — subjects, practice tracks and resume keywords. You can change it anytime.

Select your branch to personalize your prep

Every engineering branch gets a different roadmap. Choose yours — CSE/IT, ECE, EEE, Mechanical, Civil — or stay on the universal first-year track.

Universal placement tools

These apply to every branch and every recruiter — aptitude, company tests, resumes and interviews.

Aptitude Hub

Quant, logical and verbal drills for every company's first screening round.

Open

Company Test Simulators

Timed mock drives patterned on TCS, Infosys, Accenture, L&T and more.

Open

ATS Resume Review

Score your resume against ATS rules and the keywords recruiters scan for.

Open

AI Mock Interview

A live spoken interview with camera, scratchpad and a written scorecard.

Open

HR & Behavioral Studio

STAR builder and 40+ HR questions with good-vs-bad answer breakdowns.

Open

GD & Extempore

30+ GD topics, PESTLE/SPELT frameworks and a timed extempore trainer.

Open

Coding & SQL Sprint

30 algorithm problems and 20 placement SQL queries with solutions.

Open

Project Blueprints

Resume-grade capstone plans with milestones, ATS bullets and defence Q&A.

Open

Current branch: All Branches / First Year — switch anytime from the header.

Every practice tab, and what it's for

Each subject opens into the same six tabs, so once you learn one workspace you know them all. Pick the tab that matches what you need today.

Today

Your daily warm-up. One fresh, level-appropriate question every day so practice becomes a habit instead of a weekend cram.

Use it for a 15-minute daily streak.

Free practice

An open 15-question session on any business domain you type in (e-commerce, banking, logistics…). Difficulty ramps from beginner to advanced as you go.

Use it when you just want volume and variety.

Topic-wise

Pick a single concept — joins, window functions, CTEs, indexes, pointers, streams, DataFrames — and drill a focused set of questions on only that concept.

Use it to turn one weak topic into a strength.

Targeted

Tell the mentor your goal or the company you're interviewing at, and it builds a personalised plan of questions matched to that hiring bar.

Use it in the last week before an interview.

Data Engineering

Real-world pipeline and warehouse scenarios: modeling, SCDs, ETL/ELT, quality checks, partitioning and cost-aware SQL — the questions data teams actually ask.

Use it for DE / analytics-engineer roles.

Solved

Your personal library. Every question you solve is saved with your answer, the model solution and the unique functions you used, so revision is instant.

Use it to revise the night before.

Alongside the tabs, every question ships with an ERD, schema, seed data, an About panel and a Theory panel on a resizable side pane — plus hints, debugging help and an AI chat mentor you can ask anything, including screenshots.

Live AI Interview — the closest thing to the real call

Most people can solve the problem but freeze when they have to explain it out loud. The live interview fixes exactly that: a spoken, timed, JD-aware mock interview that ends with a written scorecard.

Paste the job description

Add the role, stack and JD. The interviewer calibrates its questions and its scoring bar to that exact job instead of asking generic trivia.

Speak your answers

A real voice conversation with an animated AI interviewer. Voice activity detection means it pauses the moment you start talking — you can interrupt, just like a real call.

Camera + scratchpad

Your webcam preview keeps it realistic, and a live scratchpad lets you write code or sketch a design while you explain.

Full scorecard at the end

A written report with per-skill radar scores, strengths, gaps, better phrasings for weak answers and a clear next-step study plan.

Explore the live interview

Six tracks. One account. Zero switching cost.

Every track has its own AI question engine, visual tutorials, solved library, and progress state — switching between SQL, Python, Java, C/C++, PySpark or GCP never overwrites another one.

SQL / MySQL

Generated schemas, seed data, ERDs and semantic query grading.

Open track

Python

DSA, OOP and system-design micros graded against hidden tests.

Open track

Java

Collections, streams, concurrency, records and Spring Boot scenarios.

Open track

PySpark

DataFrames, joins, windows, tuning and structured streaming.

Open track

C / C++

Pointers, memory, STL and templates with a per-question language toggle.

Open track

GCP Data Engineer

BigQuery, Dataflow, Pub/Sub, Composer, IAM and cost optimization Q&A.

Open track

Data Engineer Projects

A daily industry-level project with large data, pipeline tasks and automatic checks.

Open track

The full placement lifecycle, not just coding

Aptitude and coding get you shortlisted; HR, GD, tools and projects get you hired. Every branch finds its own track here — from core-subject revision to capstone blueprints.

HR & Behavioral Studio

STAR story builder, 40+ HR questions with good-vs-bad breakdowns and the ask-the-interviewer repertoire.

Open module

GD & Extempore

30+ GD topics with both sides ready, PESTLE/SPELT frameworks and a timer-driven extempore simulator.

Open module

Git, Linux & Tooling Lab

25 Git workflows with mistake recovery, Linux survival kit, terminal quiz and Docker/CI-CD.

Open module

Web Fundamentals

The 'type a URL' lifecycle, API style comparison, HTTP status drills and security primer.

Open module

Systems Design

SOLID, GoF patterns, LLD problems (parking lot, vending machine) and HLD walkthroughs.

Open module

Project Blueprints

Branch capstones with architecture, 8-week milestones, ATS bullets and defence answers.

Open module

Coding & SQL Sprint

30 algorithm problems + 20 placement SQL queries, multi-language, company-tagged.

Open module

Cloud & DevOps Essentials

Docker, Kubernetes, AWS/Azure/GCP parity, CI/CD and SRE — drills, 30 MCQs, 20 interview Q&As.

Open module

Security & Networking

OWASP Top 10, JWT lab, header linter and the URL-to-render journey, exam-grade.

Open module

Puzzles & Guesstimates

25 campus puzzles with full derivations and 15 consulting-grade guesstimates with frameworks.

Open module

Data Interpretation

10 chart caselets with 40 speed questions and 30 syllogism/seating/blood-relation drills.

Open module

Readiness Diagnostic

A timed 20-question assessment that scores your placement readiness and plans your next module.

Open module

Revise Later

Bookmark anything across the app and sprint through it in flashcard mode before the interview.

Open module

Placement Drive Tracker

Kanban board for every drive — deadlines, CGPA cutoffs, test dates, referrals and round history with JSON export.

Open module

Placement Formula Book

Printable branch-wise formula sheets with search, copy-LaTeX and one-click cheat-sheet export.

Open module

Solved Numerical Drills

Step-by-step core numericals with ±2% tolerance checking and formula cross-references.

Open module

CTC vs In-Hand Calculator

Turn any offer letter into a real monthly take-home with exact EPF, gratuity and both tax regimes.

Open module

ATS Resume Builder

Single-column ATS resume with branch project starter kits, action-verb enhancer and PDF export.

Open module

Referral Outreach Generator

Cold emails and LinkedIn referral messages for alumni and tech leads, with etiquette that gets replies.

Open module

30-Day Company Roadmaps

Day-by-day sprint checklists for service, product, semiconductor, automotive and infrastructure drives.

Open module

STAR Story Canvas

Guided STAR behavioral story builder with a quality checklist, saved library and practice reader.

Open module

4-Round Drive Simulator

A full campus drive day: timed aptitude, technical, coding and HR rounds with a fit score, percentile and focus report.

Open module

Daily Placement Challenge

Four 5-minute micro-tasks every day — aptitude, core MCQ, coding micro-task and HR reflection — to protect your streak.

Open module

Speed Maths Lab

8 Vedic-math shortcut modules plus a 60-second reaction drill for TCS NQT-style calculation speed.

Open module

Lab Viva Voce Hub

120+ examiner-grade viva Q&A with principles and traps, rapid-fire flashcards and cheat-sheet export.

Open module

CGPA & Eligibility Engine

University-exact CGPA→percentage (VTU, Anna, SPPU, JNTU…) and instant Tier-1/2/3 recruiter eligibility with backlog tracking.

Open module

Offer & Bond Evaluator

Compare offers side-by-side and flag bond, clawback and variable-pay traps with ready HR clarification emails.

Open module

Interview Etiquette Guide

Grooming matrix, webcam setup, body-language playbook and tricky panel situations with a printable morning checklist.

Open module

GitHub Showcase Lab

Recruiter-grade README generator, capstone defence Q&A and a repository health audit before panels open your link.

Open module

Why it's different

Graded on meaning, not string match

The mentor traces your logic line by line against the test data, so a different-but-correct solution still passes and a lucky guess doesn't.

Theory built around your question

Every question comes with a 7-part explainer — mental model, syntax patterns, schema strategy, an end-to-end trace, edge cases and a sanity checklist — plus animated flow diagrams.

Resume exactly where you stopped

Autosave checkpoints per subject. Close the tab mid-question, come back on another device, and your question and code are still there.

Who it's for

  • Students and freshers building fundamentals from zero
  • Data analysts and engineers moving into SQL / BigQuery / Spark roles
  • Backend and DSA candidates preparing for MNC and FAANG-style rounds
  • Working engineers with 30 minutes a day and an interview next month

Getting started takes a minute

  1. Step 1

    Create a free account with email or Google.

  2. Step 2

    Pick a subject, then pick the tab that matches your goal — Today for habit, Topic-wise for a weak area, Targeted before an interview.

  3. Step 3

    Solve, read the theory, review the AI feedback, and book a live mock interview when you're ready.

Start practicing today — it's free

Sign in once and your questions, code, theory and progress follow you across every device.

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