Datastructures using C and C++
Every serious technical interview is a data structures interview. You build each structure by hand in C and C++, then drill the patterns that recur across company assessments.
- C
- C++
- GDB
- +2
Short term skills courses, six-month certification programmes and semester coaching for degree students. Small live batches, projects you actually deploy, and interview preparation before you start applying. Sit a free demo class first.
Short term, certification, academic
Capped batch size
Assessed on projects
Mazgaon classroom or live online
Batches forming now
Where our students work
Most enrolled
Our most enrolled courses across short term, advance certification and academic coaching. Every one includes a free demo class before you commit.
Every serious technical interview is a data structures interview. You build each structure by hand in C and C++, then drill the patterns that recur across company assessments.
The shortest route from no code at all to a working, employable skill. Sixty hours of live teaching that starts at absolute beginner and ends with five projects and a deployed web application in your portfolio.
The highest return per hour of any course we run. Four weeks of practical AI for people who work in documents, spreadsheets and email all day, with no coding at all.
The complete analyst toolkit in one programme: spreadsheets, SQL, visualisation and Python, applied to real datasets and finished with a dashboard you can defend in an interview.
Statistics, machine learning and big data tooling, taught through projects that end in deployed models rather than notebooks. Six months, with placement preparation built in.
The full route for someone who has never programmed: Python properly first, then the whole data science programme built on it. Same syllabus as both courses taken separately, in the order that actually works.
The analyst toolkit and the scientist toolkit, in the order employers actually hire for. Get employable as an analyst first, then add the modelling and deployment that moves you up.
From neural network fundamentals to working with large language models. An applied AI programme for people who want to build systems, not just talk about them.
Everything on the modelling side, in one programme. Data science end to end, the machine learning algorithms understood rather than imported, and applied AI through to generative models and guardrails.
Six months from first HTML tag to a deployed, database-backed application in your portfolio, with the interview preparation that turns it into an offer.
Cloud and DevOps together, because employers hire for the combination. You build real infrastructure, containerise applications and ship them through a pipeline you wrote.
Defensive security aimed where the attacks now are: cloud infrastructure and AI systems. Everything is practised in an isolated lab we provide.
Deploying is the easy part. This is the course about what happens afterwards: Kubernetes in depth, GitOps, observability you can debug with, and the reliability practices that decide whether a system stays up at three in the morning.
The newest thing we teach, and the one nothing else in Mumbai covers properly. Building AI systems that plan, call tools and finish multi-step work on their own.
Why Visual Labs
Eight things we hold to on every batch, whichever course you take.
A trainer cannot help twelve people and forty people equally. Batch size is capped so questions get answered in the room.
Every module ends in something you made. Assessment is your project, never a multiple-choice paper.
Our trainers have worked on production systems. Ask how something behaves at scale and the answer comes from experience.
Move between the Mazgaon classroom and live online batches mid-course when work or college demands it. No extra fee.
Missed a week or want a topic again? Sit the same module with a later batch at no cost, for a year after you finish.
You leave with deployed work on a real URL and a GitHub history, which is what an interviewer actually looks at.
Profile review and practice interviews against the questions Mumbai employers actually ask, included in every job-track course.
One to one doubt clearing outside session hours, because the questions arrive when you are practising alone.
How a class runs
The difference between a course and a playlist is what happens after the explanation.
Step 01
A trainer explains it on a shared screen and you can interrupt. Nothing here is a recording, so a question gets answered when you have it, not in a comment thread three days later.
01
Concept in a live class
Step 02
You write the code in the lab while the explanation is still fresh, with the trainer walking the room. Most of the learning happens in this hour, not the one before it.
02
Practise the same day
Step 03
Each course ends in a project that is yours: it goes in your portfolio, you can talk through every line of it, and it is what makes an interview a conversation rather than a quiz.
03
Build something you keep
Step 04
Mock technical interviews, profile review and portfolio feedback before you start applying — so the first real interview is not the first time you have answered these questions out loud.
04
Rehearse the interview
01
Concept in a live class
How it works
Six stages. You always know what comes next and what is expected of you.
Timings
Pick the format that fits the week you already have. You can switch between classroom and online at any point without paying again.
Mon to Fri
School and college students, and anyone studying full time.
Saturday
Working professionals who cannot attend on weekdays.
Same timings, from anywhere
Students outside Mumbai, or anyone who travels.
Not sure which suits you? Tell us your week and we will find a batch.
On completion
Issued after your capstone is assessed, not for attendance. This is what you take away.

Hands on
Taught on the real software, on real datasets, not on screenshots.
Before you enrol
Because most people who start a free course do not finish one, and the syllabus was never the hard part. What you are paying for is a fixed time each week, a person who answers the question you are actually stuck on, and someone noticing when you stop turning up. If you have taught yourself something technical before and finished it, you may genuinely not need us, and we would rather say that than sell you a seat.
Yes. Book a free demo and you sit in on a real session with a running batch, not a sales presentation put on for visitors. If it is not right for you, nothing is owed and we will not chase you.
It is a Visual Labs course completion certificate. It is not a university degree and it is not a government or industry accreditation, and any institute implying otherwise about its own certificate is being loose with the truth. What gets you interviews is the project work you can show and explain; the certificate is a record that you completed the course.
No. Job-track courses include portfolio review, profile building and mock technical interviews, and we pass on openings we hear about. Nobody can guarantee that a third-party company will hire you, and an institute that promises it in writing is usually relying on a definition of "placement" you would not accept if you read it closely.
The trainer who teaches your batch is the one you meet at the demo. Ask at the demo what they have built and worked on, and ask the students already in the batch how long that trainer has been with them. Those two questions are worth asking at every institute you visit, including this one.
Capped at twelve students to one trainer, which is the constraint that decides whether you can actually interrupt and ask something. Batch size is the specific thing to ask about anywhere you are considering, because it is the easiest promise to quietly break.
A fair concern, and the reason our syllabus pages list the concepts inside every topic rather than just topic names. Go and read one. If a C++ course still teaches only the pre-2011 language, or a Java course stops at Java 8, that will be visible from the concept list without you having to ask anyone.
Weekday evening and weekend batches exist for exactly that, and you can move between classroom and online mid-course at no extra cost when work makes travel impossible. Be realistic about the project time outside class, though, because that is where people with jobs usually fall behind rather than in the sessions themselves.
Tell us in advance and we will fit you into the same session in another running batch where one exists, which is the honest advantage of teaching the same course several times a week. Sessions are live rather than recorded playback, so catching up means attending a repeat rather than watching a video.
Fees vary by course length and mode, and instalments across the course duration are available. We do not publish a single figure because it would be wrong for most courses on the site. Call the number above or book the demo and you will get the exact figure for the course you are asking about, before you commit to anything.
Yes. Most of our job-track courses open at absolute beginner level and assume nothing for the first several weeks. The courses where that is not true say so in their own FAQ, along with what you should take first.
Nesbit Road in Mazgaon, next to Mazgaon Court, a short ride from Byculla and Dockyard Road stations. The full address and a map are on the contact page.
Visit us
We would rather run one room well than ten badly. Walk in any weekday, or join the same batches live online from anywhere.
Address
Mazgaon CHS Commercial Chamber, A Wing, Office 32, 2nd Floor, Nesbit Road, Next to Mazgaon Court, Mumbai 400010Nearest stations
Byculla and Dockyard Road, both a short ride away. Mazgaon Court is the landmark.
Phone
+91 98921 00046Hours
Mon to Fri 10:00–19:00
Sat 10:00–17:00
What a visit looks like
01Sit in on a live batch
Join a running session, meet the trainer and see the room. It is free, and nothing is owed if it is not right for you.
02Talk it through with a counsellor
We map your background and goal to a track, a batch timing and a realistic timeline.
03Pick a timing, change it later
Weekday, weekend or live online, with the same trainers. Switch between classroom and online at any point without paying again.
Free demo class
Not a sales call and not a recorded video. You join an actual batch, meet the trainer and see the room. If it is not right for you, nothing is owed.