NEW59 carousels, every slide, in one place

I build AI that ships,
then I teach it.

GenAI engineer in Kanpur. RAG, fine-tuning, vision and AI agents, explained from production systems I've built. 70 guides answering 2,049 real questions people search.

3× hackathon first prizes200+ students mentored14 people on the team I lead
Changethon 2025 · IIT RoorkeeVividhotsava 2025 · CSJMU KanpurBYTEBATTLE · MeetKatsVSICS KanpurTechVerse EnclaveSCULT INDIAChangethon 2025 · IIT RoorkeeVividhotsava 2025 · CSJMU KanpurBYTEBATTLE · MeetKatsVSICS KanpurTechVerse EnclaveSCULT INDIA

In numbers

Built, won, taught. Counted.

70in-depth guides on GenAI engineering
2,049real search questions answered
59carousels, every slide on this site
200+students mentored

Topics

Eight things I know from doing them.

Every guide comes from a system I shipped, a hackathon I won, or a room I spoke to.

Most searched

Start here.

Shipped

Things I've built and shipped.

The library

All 70 guides. Pick a topic.

Pranjul Rathour, GenAI engineer, Kanpur
RAG & retrieval

What is machine learning, and what is it actually used for? The three types, how it differs from AI and deep learning, and real applications

8 questions · updated 2026-09-24
Presenting to a room
RAG & retrieval

What is a vector database? How vector search works, when you need one, and FAISS vs pgvector vs Qdrant vs Pinecone

14 questions · updated 2026-09-24
Taking questions during a session
Shipping AI apps

What is prompt engineering? Techniques that work, system prompts, prompt injection, and whether it is still a job

13 questions · updated 2026-09-24
On the mic
RAG & retrieval

What is an LLM? Large language models explained: tokens, context windows, parameters, open vs closed models, and what they cost to run

14 questions · updated 2026-09-24
On the mic
Shipping AI apps

What is vibe coding? AI coding assistants explained, Cursor vs Copilot vs Claude Code, when it works, when it fails, and how to use it without losing your skills

10 questions · updated 2026-09-24
Presenting KrishGyan, farming advice in your voice and language
Vision, speech & OCR

What is computer vision? How machines see images, the classic pipeline versus deep learning, and where it's used, from cameras to medical scans

9 questions · updated 2026-09-24
Presenting Annapurna on stage
GenAI careers

AI final year project ideas for CS, IT, BCA and MCA students: 25 projects that are buildable, demonstrable and get you interviews

12 questions · updated 2026-09-24
At VSICS, Kanpur
GenAI careers

BCA vs B.Tech for an AI career: what each degree actually gives you, what it lacks, and how to make either one work, from a BCA who did

9 questions · updated 2026-09-24
Pranjul Rathour
GenAI careers

Best free AI coding assistants for developers and students: GitHub Copilot, Claude Code, Cursor, Codeium and Gemini Code Assist compared

9 questions · updated 2026-09-24
Pranjul Rathour, GenAI engineer, Kanpur
Fine-tuning LLMs

Data analyst vs machine learning engineer vs AI engineer: what each job actually does, the skill overlap, and which path fits you

8 questions · updated 2026-09-24
Walking a room through the products he has shipped
The journey

Dev.to vs Hashnode vs Medium vs your own blog: where should a developer actually write in 2026?

9 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

Do you actually need a GPU for AI? A plain VRAM and hardware guide for students: what runs on a laptop, what needs to be rented, and what needs neither

8 questions · updated 2026-09-24
Pranjul Rathour
Shipping AI apps

FastAPI for AI applications: async endpoints for LLM calls, dependency injection, streaming responses, and the patterns that hold up in production

8 questions · updated 2026-09-24
On the mic
GenAI careers

Free AI tools every CS student should learn in 2026: coding assistants, models, notebooks, deployment and the ones I built, with no signup

11 questions · updated 2026-09-24
Pranjul Rathour, GenAI engineer, Kanpur
The journey

From a BCA in Kanpur to GenAI engineer: how I got here, what actually mattered, and what I would tell my first-year self

9 questions · updated 2026-09-24
A career session for students
GenAI careers

GenAI and LLM interview questions with answers: RAG, fine-tuning, prompting, agents, evaluation and system design, from both sides of the table

4 questions · updated 2026-09-24
Walking a room through evaluation criteria
Hackathons

Hackathon judging criteria and a rubric organisers can copy: how judges score, how to brief a panel, how to break ties, and how to judge fairly in 15 minutes per team

9 questions · updated 2026-09-24
Pitching at CSJMU, Kanpur
Hackathons

Hackathon pitch deck template: the seven slides, the three-minute script, demo rules and what judges score, from three first prizes and the judging table

11 questions · updated 2026-09-24
Presenting KrishGyan, farming advice in your voice and language
Hackathons

Hackathon project ideas that win: 40 AI and software ideas for students, with the hard part of each, from three first prizes

8 questions · updated 2026-09-24
Presenting KrishGyan, farming advice in your voice and language
Vision, speech & OCR

How does face recognition work? Detection, embeddings, thresholds and liveness, from building FaceVision

13 questions · updated 2026-09-24
Requirements gathering and user flows, on stage
Vision, speech & OCR

How does OCR work? From Tesseract to document AI: turning scanned PDFs and invoices into searchable, structured text

13 questions · updated 2026-09-24
Taking questions during a session
Vision, speech & OCR

How does speech to text work? Whisper, real-time transcription architecture, Indian languages, and building a live transcription feature

10 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

How much does an LLM API cost? Token pricing explained, a cost model you can run, and 12 ways to cut the bill without cutting quality

11 questions · updated 2026-09-24
A career session for students
GenAI careers

How to become an AI engineer in India: the GenAI engineer roadmap, skills, projects and salary reality, from a BCA to shipping five production apps

14 questions · updated 2026-09-24
Pranjul Rathour
The journey

How to build a developer portfolio website: what to include, what to cut, free hosting, and the three-second test recruiters actually apply

9 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

How to build an AI app and deploy it for free: architecture, stack, hosting, costs and the checklist that survives real users

12 questions · updated 2026-09-24
Walking a room through evaluation criteria
RAG & retrieval

How to evaluate a RAG system: recall, faithfulness, RAGAS, building a test set and the metrics that actually predict user complaints

12 questions · updated 2026-09-24
Presenting to a room
Fine-tuning LLMs

How to fine-tune an LLM: LoRA, QLoRA, datasets and evaluation, from building a fine-tuning platform

23 questions · updated 2026-09-24
A career session for students
GenAI careers

How to get an AI internship as a student in India: where to apply, the portfolio that gets replies, cold emails that work, and what to do when your college has no placements

11 questions · updated 2026-09-24
At the VSICS podium, Kanpur
Speaking & mentoring

How to give a guest lecture in college: preparing a technical talk, handling Q&A, and becoming a speaker colleges invite back

11 questions · updated 2026-09-24
On the mic
Speaking & mentoring

How to improve your public speaking for tech talks: structure, nerves, filler words, and the practice that actually moves the needle

8 questions · updated 2026-09-24
At the VSICS podium, Kanpur
Speaking & mentoring

How to invite a guest speaker to your college: the email, the one-pager, fees, logistics and what makes a speaker say yes

12 questions · updated 2026-09-24
A career session for students
GenAI careers

How to learn Python for AI in 2026: the roadmap from zero to shipping an LLM app, what to skip, and the projects that prove it

9 questions · updated 2026-09-24
Pranjul Rathour
GenAI careers

How to negotiate your first tech job offer in India: what freshers can actually negotiate, the script, and the mistakes that cost the most

7 questions · updated 2026-09-24
At an Integral Startup Foundation hackathon
Hackathons

How to participate in your first hackathon: where to find hackathons in India, how to form a team, what to prepare, and what to expect in 24 to 48 hours

11 questions · updated 2026-09-24
Requirements gathering and user flows, on stage
Fine-tuning LLMs

How to prepare a dataset for fine-tuning an LLM: formats, chat templates, how much data, synthetic data, validation and the checklist before you train

11 questions · updated 2026-09-24
In a packed college auditorium
Speaking & mentoring

How to start a tech community on campus: from five friends to 500 members, the sessions, the structure and the mistakes, from building TechVerse Enclave

10 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

How to structure an LLM project in Python: folder layout, config, prompts as files, evals, and the patterns that survive past the notebook

11 questions · updated 2026-09-24
Trophy and certificate of merit at Vividhotsava 2025
Hackathons

How to win a hackathon: what judges score, how to pick an idea, and the demo that works live, from three first prizes

16 questions · updated 2026-09-24
Pranjul Rathour
GenAI careers

How to write a tech resume as a fresher in India: the one-page format, what to put instead of a skills wall, and a free resume website that beats a PDF

9 questions · updated 2026-09-24
On the mic
RAG & retrieval

Hybrid search and reranking in RAG: BM25 plus embeddings, reciprocal rank fusion, cross-encoders, and why this pair fixes most bad answers

10 questions · updated 2026-09-24
A career session for students
GenAI careers

Is AI a good career in India? Roles, what hiring actually looks like, what fresher paths exist, and how to get in without an IIT tag

12 questions · updated 2026-09-24
Walking a room through the products he has shipped
Fine-tuning LLMs

LoRA vs QLoRA vs full fine-tuning: memory, speed, quality and cost compared, with the settings that matter and how to fine-tune on a free Colab GPU

8 questions · updated 2026-09-24
Taking questions during a session
Speaking & mentoring

Mentoring students remotely and internationally: what a mentor actually does, how to find one, and how to run a mentorship program across time zones

7 questions · updated 2026-09-24
A career session for students
GenAI careers

15 mini AI project ideas you can actually finish in a weekend: small, real, and worth posting about

5 questions · updated 2026-09-24
Pranjul Rathour
Speaking & mentoring

Personal branding for developers and CS students: building in public, LinkedIn and GitHub that get you hired, and speaking your way into a reputation

10 questions · updated 2026-09-24
Presenting to a room
RAG & retrieval

RAG vs fine-tuning vs prompt engineering: which one your problem actually needs, with a decision tree and real costs

9 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

Redis and caching strategies for LLM apps: exact-match caching, semantic caching, and what to cache when every model call costs money and time

8 questions · updated 2026-09-24
Pitching at CSJMU, Kanpur
Hackathons

Smart India Hackathon guide: how SIH works, how to register through your college, choose a problem statement, clear the internal round and present to ministry judges

10 questions · updated 2026-09-24
Requirements gathering and user flows, on stage
Shipping AI apps

System design for AI applications: how to answer 'design a RAG system' or 'design an AI agent' in an interview, and how to actually build one

8 questions · updated 2026-09-24
Presenting Annapurna on stage
The journey

Turning a student project into a startup: the real signal to look for, what changes, and what most student founders get wrong first

7 questions · updated 2026-09-24
Presenting KrishGyan, farming advice in your voice and language
Shipping AI apps

ChatGPT, Claude, Gemini and Copilot: what each one actually is, who makes it, what it's for, and how to tell them apart

9 questions · updated 2026-09-24
Pranjul Rathour
RAG & retrieval

What are embeddings in AI? Text embeddings, vector similarity, choosing a model, and how embeddings power RAG and semantic search

12 questions · updated 2026-09-24
Presenting KrishGyan, farming advice in your voice and language
Vision, speech & OCR

What are vision-language models and multimodal AI? How VLMs see images, what they can and cannot do, and building student projects with them

9 questions · updated 2026-09-24
Trophy and certificate of merit at Vividhotsava 2025
The journey

What three hackathon wins and one loss taught me: KrishGyan at IIT Roorkee, BrandHive at CSJMU, Annapurna at MeetKats, and STROT

6 questions · updated 2026-09-24
Presenting to a room
RAG & retrieval

What is agentic RAG and Graph RAG? Query rewriting, multi-step retrieval, knowledge graphs, and when a plain RAG pipeline is not enough

10 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

What is an AI agent? Agentic AI explained: tools, function calling, MCP, frameworks, and why most agents fail

13 questions · updated 2026-09-24
In a packed college auditorium
RAG & retrieval

What is chunking in RAG? Chunk size, overlap, structure-aware splitting and the experiments that actually decide retrieval quality

11 questions · updated 2026-09-24
Pranjul Rathour
RAG & retrieval

What is a context window, and what is context engineering? Token limits, why bigger isn't always better, and deciding what a model actually sees

8 questions · updated 2026-09-24
Presenting BrandHive
Vision, speech & OCR

What is edge AI and on-device AI? Running models in the browser and on phones with ONNX Runtime, WebGPU and quantization, from building a browser-only face recognition system

10 questions · updated 2026-09-24
Pranjul Rathour, GenAI engineer, Kanpur
Shipping AI apps

What is function calling (tool use) in LLMs? How models call your code, structured outputs, and building a reliable tool-using agent

8 questions · updated 2026-09-24
Presenting BrandHive
Shipping AI apps

What is generative AI, and where can you actually learn it for free? A clear definition and a vetted list of free courses and certificates

8 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

What is MCP, the Model Context Protocol? How MCP servers work, MCP vs function calling vs APIs, and how to build one, from running a public server

11 questions · updated 2026-09-24
Presenting KrishGyan, farming advice in your voice and language
Vision, speech & OCR

What is object detection? YOLO explained, detection vs classification vs segmentation, training on your own data, and running it in real time on a budget GPU

10 questions · updated 2026-09-24
Walking a room through the products he has shipped
GenAI careers

What does open source mean for AI models? Open-weight vs open-source, licenses that actually matter, and how to contribute

8 questions · updated 2026-09-24
Pranjul Rathour, GenAI engineer, Kanpur
Fine-tuning LLMs

What is overfitting in machine learning, and how do you actually prevent it? Train/validation/test splits, regularization, and catching it early

8 questions · updated 2026-09-24
Presenting to a room
Fine-tuning LLMs

What is quantization in LLMs? 4-bit and 8-bit models, GGUF vs AWQ vs GPTQ, quality loss, and running big models on small hardware

10 questions · updated 2026-09-24
In a packed college auditorium
RAG & retrieval

What is RAG in AI? Retrieval-augmented generation, explained from a production system

21 questions · updated 2026-09-24
Pranjul Rathour, GenAI engineer, Kanpur
Fine-tuning LLMs

What is RLHF, instruction tuning and DPO? How base models become assistants, what alignment training actually does, and when a small team should use it

11 questions · updated 2026-09-24
Walking a room through the products he has shipped
Shipping AI apps

What is vLLM? vLLM vs Ollama vs llama.cpp vs SGLang, and how to actually serve an LLM in production

8 questions · updated 2026-09-24

Carousels

59 decks. Swipe-free.

See every slide →
I built 15 free tools, 1,211 prompts and a 50,000-skill libraryThe five talks I offer collegesHow to invite a GenAI guest speaker to your collegeWhat hackathon judges actually look forThe fifteen-minute judges' briefing every hackathon skipsJudging AI hackathon projects: what to check when every team says 'we used AI'Three first prizes in one yearWhat I told 100+ first-years at the VSICS BCA inductionHow I structure a free 90-minute campus workshopRAG that refuses to hallucinateRAG.NextUpgrad, the architectureFineTune StudioFaceVisionDocuLens AIOCR & Speech WorkspaceOne SKILL.md, five coding agentsWhat MCP actually isCan ChatGPT even see your website? The AI Visibility Checker I built40 free 80s Bollywood photo promptsNaming a business without a naming agencyUTM links that survive GA4ROI, ROAS and break-evenCore Web Vitals without the jargonInvoices that get paid on timeThree developer tools that never phone homeTwo small tools people use every dayA colour palette generator built on OKLCHSchema Markup GeneratorAnnapurnaThe two-minute pitchI built 15 free tools, 1,211 prompts and a 50,000-skill libraryThe five talks I offer collegesHow to invite a GenAI guest speaker to your collegeWhat hackathon judges actually look forThe fifteen-minute judges' briefing every hackathon skipsJudging AI hackathon projects: what to check when every team says 'we used AI'Three first prizes in one yearWhat I told 100+ first-years at the VSICS BCA inductionHow I structure a free 90-minute campus workshopRAG that refuses to hallucinateRAG.NextUpgrad, the architectureFineTune StudioFaceVisionDocuLens AIOCR & Speech WorkspaceOne SKILL.md, five coding agentsWhat MCP actually isCan ChatGPT even see your website? The AI Visibility Checker I built40 free 80s Bollywood photo promptsNaming a business without a naming agencyUTM links that survive GA4ROI, ROAS and break-evenCore Web Vitals without the jargonInvoices that get paid on timeThree developer tools that never phone homeTwo small tools people use every dayA colour palette generator built on OKLCHSchema Markup GeneratorAnnapurnaThe two-minute pitch
42 verified Claude Code promptsVaidya AIFAQ Schema GeneratorKrishi GyanHow a 1,211-prompt library stays honestThe live-demo checklistSCULT Studio19 AI Agents & RAG promptsHow to form a hackathon team that ships34 Veo and 30 Nano Banana promptsFive production AI apps in one yearWhat mentoring 200+ students taught me23 no-code app prompts and 32 LinkedIn promptsFive client sites, one studio2,375 testing skills for coding agentsFrom a failed first project to five shipped AI appsThe AI-search visibility checklistDesign the fallback before the outageWhy I speak at student communities for free13 of 15 tools never upload a byte647 tests across five AI appsTechVerse EnclavePortfolio over certificates5 production AI apps, all open source15 free tools, no signup, every link7 levels of RAG apps1,211 prompts, every one stampedThree first prizes, one lossInvite a GenAI speaker: the checklist42 verified Claude Code promptsVaidya AIFAQ Schema GeneratorKrishi GyanHow a 1,211-prompt library stays honestThe live-demo checklistSCULT Studio19 AI Agents & RAG promptsHow to form a hackathon team that ships34 Veo and 30 Nano Banana promptsFive production AI apps in one yearWhat mentoring 200+ students taught me23 no-code app prompts and 32 LinkedIn promptsFive client sites, one studio2,375 testing skills for coding agentsFrom a failed first project to five shipped AI appsThe AI-search visibility checklistDesign the fallback before the outageWhy I speak at student communities for free13 of 15 tools never upload a byte647 tests across five AI appsTechVerse EnclavePortfolio over certificates5 production AI apps, all open source15 free tools, no signup, every link7 levels of RAG apps1,211 prompts, every one stampedThree first prizes, one lossInvite a GenAI speaker: the checklist

On stage

Rooms I've spoken to.

Guest lectures, workshops, tech clubs, pitches and judging, across Kanpur and beyond.

Speaking at a MeetKats event
Speaking at a MeetKats event
In a packed college auditorium
In a packed college auditorium
At the VSICS podium, Kanpur
At the VSICS podium, Kanpur
A career session for students
A career session for students
Pitching at CSJMU, Kanpur
Pitching at CSJMU, Kanpur
Presenting KrishGyan, farming advice in your voice and language
Presenting KrishGyan, farming advice in your voice and language
Walking a room through evaluation criteria
Walking a room through evaluation criteria
Taking questions during a session
Taking questions during a session
Requirements gathering and user flows, on stage
Requirements gathering and user flows, on stage

Open to invitations

Judge your hackathon. Speak at your college.

Open to GenAI roles, hackathon judging, mentorship sessions and guest talks at colleges. Tell me the date, the audience and the format, and I'll tell you what I can bring.

Pranjul Rathour