At ICABB 2026, JIIT Noida
presenting at ICABB 2026
Quiz session at Pehla Akshar
quiz day at Pehla Akshar
An aluminium-air test cell giving off smoke
battery attempt. it smoked.
SAFR, the safety robot, on a demo table with its live dashboard
SAFR, my robot, on demo day

Ridit Aggarwal

I’m a high school senior in New Delhi. I build machines that notice danger early, and I teach people what to do when they do.

Applying to college, class of 2027

Factories in India use powerful machines and chemicals that can sometimes put workers at risk. I explore how science can make workplaces safer by building sensors that spot early warning signs, learning how safety rules protect people, and teaching science to children who don’t always get the chance to share what they know.

I believe science should do more than explain the world... it should help make it better.

that's most of it. the rest is quizzing.
so, while you're here, one for you:

crossword cluetech

Oggy's brother, from afar (4, 6)

$0Kgrant to build the robot further
0industrial plants where it was tested
0+factory workers taught to spot hazards
0+students I represent as Head Boy

The work

pick one
the thing I'm proudest ofDec 2024 to now

SAFRshort for Safe Autonomous Field Responder

A small robot that drives through factories and checks the places people don’t go often enough. It looks for heat, gas leaks and corrosion, and sends a warning before something goes wrong.

I built it at RAMSI Tech, the company I started to take it further. The paper on it won Best Paper at the Global Confluence Review conference.

how it's put togetherhover the list
THERMAL CAMERA ULTRASONIC x2 CH₄NH₃CO₂VOC GAS SENSORS RPi 4ESP32 RASPBERRY PI + ESP32 LIVE DATA + ALERTS TOP VIEW, NOT TO SCALE FRONT
Brain
A Raspberry Pi 4, with an ESP32 handling the sensors
Eyes
A thermal camera that picks out hotspots
Nose
Sensors for methane, ammonia, CO₂ and VOCs
Feelers
Ultrasonic sensors so it doesn’t crash into things
Voice
Live data on a dashboard, plus SMS alerts over GSM
SAFR being shown to visitors at school
demo day at school
0industrial sites tested, from power plants to a hospital
0more robots ordered by Jindal India Power after the pilot
0°Cthe hottest hidden hotspots it found, above normal levels
0%up to this much less time workers spent in risky zones at Jindal

a few places it's been

  • Jindal India PowerThermal power plant
  • SEIL Energy IndiaThermal power plant
  • Aether BreweriesBrewery, Arunachal Pradesh
  • United Brothers DistilleriesBottling plant
  • Romina EnterprisesFootwear factory, Bahadurgarh
  • Government City Hospital, HodalPublic hospital

what people said after the pilots

He was transparent about the robot’s current capabilities, receptive to practical feedback, and thoughtful in translating real-world constraints into iterative design improvements.
Aether Breweries, after the pilot at their plant
Following the successful pilot and positive feedback from both the safety and maintenance teams, Jindal India Power approved the procurement of four additional robots.
Jindal India Power
The thermal imaging module proved particularly useful in identifying heat buildup that would not have been apparent during routine visual inspections.
Medical Officer, Government City Hospital, Hodal
Consistently focused on making the system practical rather than overstated.
Romina Enterprises, a manufacturing partner for Bata
These modifications showed a mature engineering mindset, responding to real operational constraints instead of testing the device only in ideal conditions.
United Brothers Distilleries
In my thirty plus years of experience in teaching and research, I have rarely encountered a young individual with such a profound capacity for innovative thinking.
Professor, NIT Rourkela
The full story

Not everything works

My aluminium-air battery took a lot of tries. Here are some of them. I kept the photos because they taught me more than the one that worked.

this one smoked.

a whole test run on the roof, sped up. shake the electrolyte, then check every cell.

two cells, mid test. one leaking.

what the inside looks like after.

NaOH, KOH, salt water, and a few more.

the version that made it into the paper.

It got published in the Oxford Journal of Student Scholarship.
Read the paper

About Ridit

the short version
Ridit in the school chemistry lab
that's me, in the lab

I’m Ridit. I build sensors, read regulations and write quiz questions, usually in the same week.

I’m in my last year at Delhi Public School, R.K. Puram, where I’m Head Boy. Most of what I do comes back to one question: how do you make dangerous materials safer for the people who work with them every day?

That question got me into factories with a robot, into a review of how corrosive chemicals are sold in India, and into a room with acid attack survivors talking about skincare. Along the way I learned that a sensor reading only helps if someone understands it. So I teach too.

where it all started: why do some bicycles cost more than cars? (it's the materials.) these days it's four hour rides on Saturdays, mostly out in the Aravallis.

school
D.P.S. R.K. Puram, New Delhi
graduating
2027, applying to college now
into
Materials, robots, chemical safety
speaks
English, Hindi, Punjabi, some French
school, grades and the jobs I've taken on2023 to now

Delhi Public School, R.K. Puram

New Delhi. Physics, chemistry, maths, economics and English.

The senior quiz team at Infinitus Reus 2026
the quiz team, Infinitus Reus '26

grades, in percent

Grade 90%
Grade 100%
Grade 110%
Grade 12 (predicted)0%

AP exams: five taken, five 5s

5Calculus BC
5Chemistry
5Environmental Science
5Physics 1
5Statistics

at school

  • 1Head Boy, for a school of more than 9,500 students
  • 2The only student on the team that set up the school’s first IB Diploma Programme
  • 3Student Council and Discipline Committee
  • 4I run the Quiz, Maths, AI Lab and Research clubs