GLOBAL WINNER
The Earth Prize 2026
Global Winner · Plas-Stick
Team recognition for Ariana Agarwal, Avyana Mehta, and Vivaan Chhawchharia.
Evidence & Recognition
Browse by project
Plas-Stick
The Earth Prize, Young Climate Prize, award letters, research, experiments, and press.
GrainOS
Diamond Challenge results, ministerial recommendation, village testimonial, and the hardware pilot.
Informal Economy Index
Ashoka, businessline, IB, the ACORN workshop letter, and city-by-city fieldwork.
Untabooed / Sattva
Global Social Leaders, Youth Ideathon, the project report, book, team, and school sessions.
Financial-inclusion research
The complete Jhunjhunu paper, mentorship acknowledgement, and both District Collector letters.
Academics & other team work
Cambridge, CIB, Conrad, Samsung, the Vermont book award, and the Lodha spotlight.
Speaking, leadership & community
G20 Brightsparks, NASSCOM, TOI Social Impact Summit, school leadership, and community visits.
Research & work
Looking for a letter?
All seven supplied letters and correspondence records, together in one index.
Plas-Stick
The Earth Prize 2026 · Global Winner
Awards, selections & recognition
REGIONAL WINNER
The Earth Prize 2026 · Asia
Regional Winner · US$12,500 prize funding
The official regional announcement names Plas-Stick as Asia’s winner. The subsequent global release confirms that the team received the regional funding.
COHORT SELECTION
Young Climate Prize
Cycle 03 cohort · Ariana Agarwal & Vivaan Chhawchharia
The World Around’s cohort profile describes Ariana’s work in finance, outreach, and communications, alongside research, testing, and product development for Plas-Stick.
MEDIA HONOUR
India Today — The She List 2026
Featured honourees · Ariana Agarwal & Avyana Mehta
“A smart filter” — a feature on the Plas-Stick team.
RESEARCH DISTINCTION
Sigma Xi IFoRE
Top 2% · Plas-Stick research
Researcher — Plas-Stick: Efficacy, Cost & Use Study; presented at IIT Guwahati.
Letters & testimonials
LETTER / CORRESPONDENCE
IIT Guwahati E-Cell · UDGAM ’26
Project evaluation and written feedback
Utkarsh Sharma, Overall Coordinator, confirms that Plas-Stick was reviewed at UDGAM and discusses its innovation, feasibility, magnetic recovery, and potential for decentralised treatment.
Document context
Entrepreneurship evaluation by E-Cell; this letter is distinct from a drinking-water safety certification.
Click to read LETTER / CORRESPONDENCE
Shining World Invention Award
Award letter and US$12,500 offer of support
The Supreme Master Ching Hai International Association’s letter, dated 4 July 2026, names Ariana Agarwal, Vivaan Chhawchharia, and Avyana Mehta, presents the invention award, and offers support toward further development.
Document context
The document records the offer; it does not confirm receipt of the funds.
Click to read Research & project documents
DOCUMENT
Plas-Stick: Efficacy, Cost & Use Study
Researcher · Sigma Xi IFoRE Top 2% · Presented at IIT Guwahati · 6 pages
Original manuscript: “From Cost-Effectiveness to Adoption: Evaluating Plas-Stick for Microplastic Removal in Indian Water-Treatment Systems.” Experimental methods, dosage and pH tests, reuse, real-water conditions, cost comparisons, and institutional barriers to adoption. The paper reports 87 ± 2% removal under its stated test conditions and includes five experiment photographs.
Click to read DOCUMENT
Bio-magnetic coagulant · complete specification
Technical description, process, and claims · 17 technical pages
The supplied specification names Ariana Agarwal, Avyana Mehta, and Vivaan Chhawchharia. It describes the tamarind-polysaccharide / magnetite composite, preparation, recovery, and reuse.
Document context
A technical specification; no patent grant is asserted. The cover containing home addresses is omitted from the viewing copy.
Click to read DOCUMENT
Plas-Stick press collection
160 numbered references and two newspaper clippings · 13 pages
News coverage, official announcements, educational references, and social features. The searchable web archive keeps the source numbering and separates these types of coverage.
Press & media
All 160 supplied references are available by outlet and coverage type, including CNN, Reuters, NDTV, The Times of India, World Economic Forum, and the BBC News × Global Women social feature.
These include reposts and social features; the number is a reference count, rather than a count of independent news outlets.
Newspaper clippings
2 images
Experiments & development
Plas-Stick: Efficacy, Cost & Use Study · Researcher · Sigma Xi IFoRE Top 2% · Presented at IIT Guwahati
Three demonstration photographs and all five photographs from the research paper.
Inside the laboratory
3 images
GrainOS
Diamond Challenge · Capital One topical prize
Awards, selections & recognition
COMPETITION PRIZE
Diamond Challenge 2026
Capital One Pathways to Prosperity Prize · Business winner
GrainOS was a finalist and won the $1,500 Business topical prize at the Limitless World Summit. The official results name Ariana Agarwal, Meagan Ghai, Naysa Singhal, and advisor Minal Jain.
Click to read Letters & testimonials
LETTER / CORRESPONDENCE
Bhagirath Choudhary
Recommendation · Minister of State for Agriculture & Farmers Welfare
The recommendation identifies Ariana as GrainOS co-founder and describes storage monitoring, sell-or-hold recommendations, and a Haryana FPO pilot. It reports a 20% rise in farmer income, a 30% reduction in spoilage risk, and 95% market-price prediction accuracy. It also records letters of intent from 25 FPOs for approximately 300 proposed godowns and evaluation by TERI for potential deployment.
Document context
Figures and institutional interest are reported by the letter. The proposed expansion is a pipeline, rather than a count of completed installations.
Click to read LETTER / CORRESPONDENCE
Village Panchayat testimonial
Letter of interest / testimonial · 18 April 2026
The signatories describe pilot deployment of the GrainOS prototype, monitoring of storage conditions, timely spoilage-risk information, cooperation with local stakeholders, and interest in continued development.
Click to read Hardware & field pilot
From prototype to pilot
2 images
Informal Economy Index
Ashoka Young Changemaker · businessline Young Changemaker
Awards, selections & recognition
NETWORK SELECTION
Ashoka Young Changemaker
Selected for the Young Changemakers network
Hindustan Times coverage identifies Ariana as one of 15 teen changemakers selected that year for her Informal Economy Index work.
Click to read AWARD RECOGNITION
businessline Changemaker Awards 2026
Young Changemaker · Informal Economy Index
Recognition of Ariana’s work with informal workers.
INSTITUTIONAL PROFILE
IB Global Youth Action Fund
Informal Economy Index · project profile
Informal Economy Index · project profile in the IB’s Festival of Hope / Youth in Action collection.
Letters & testimonials
LETTER / CORRESPONDENCE
ACORN Foundation
Workshop completion letter · signed by Rima Basu
The 5 October 2025 letter confirms an Informal Economy Index financial-literacy workshop at the ACORN Foundation Centre, Mumbai, on 2 August 2025. It reports 300 participants and sessions on savings planning, bank-account activation, mobile banking, and group savings, developed in response to an earlier survey.
Click to read Research & project documents
DOCUMENT
Informal Economy Index · field album
Eight cities across six states · 19 pages
The photographic record covers Faridabad, Mumbai, Bhopal, Gwalior, Ludhiana, Jaipur, Pushkar, and Churu. All 18 embedded images, including the repeated image in the source, are displayed by city on the project page.
Click to read Informal Economy Index — fieldwork in eight cities
Faridabad · Mumbai · Bhopal · Gwalior · Ludhiana · Jaipur · Pushkar · Churu.
Informal Economy Index · community conversations
3 images
Untabooed / Sattva
Global Social Leaders 2024 · Senior Winner
Awards, selections & recognition
COMPETITION WINNER
Global Social Leaders 2024
Senior Winner · Sattva / Untabooed
The official results name Sattva, the team behind Untabooed at Jayshree Periwal International School, as the 2024 Senior Winner.
COMPETITION RESULT
Youth Ideathon 2024
Entrepreneurship track · standout innovation
Untabooed · team 2F11636 · Entrepreneurship track. Team: Ariana Agarwal, Jiya Kothari, and Nandini Mathur.
Click to read Research & project documents
DOCUMENT
Untabooed · project report
Book development, team roles, distribution, and school sessions · 2 pages
Ariana is credited as editor, Jiya as author, Nandini as illustrator, and Keya as doodler. The report records 100 recycled-paper copies printed, 25 distributed, and five government-school sessions with 150+ attendees. Its wider reported impact is 500+ people, with 1,700 work-hours over six months. All 11 embedded photographs are included on the project page.
Click to read The book & school sessions
The team, book, and outreach
3 images
Financial-inclusion research
188 adult respondents · six village clusters
Awards, selections & recognition
RESULTS REFERENCE
S.T. Yau High School Science Award (Asia)
2026 first-round results reference
Competition results linked in the portfolio brief. No prize level is stated here.
Document context
The brief gives code 168 without a category. This reference does not establish an award level or an individually attributable result.
Letters & testimonials
LETTER / CORRESPONDENCE
District Collector & District Magistrate, Jhunjhunu
Research engagement and administrative support
Dr. Arun Garg’s letter confirms Ariana’s field-based research engagement on digital financial inclusion and debt vulnerability among women in the informal economy. It describes surveys, interviews, and coordination with Gram Panchayat institutions.
Click to read LETTER / CORRESPONDENCE
Office of the District Collector, Jhunjhunu
Internship completion certificate
The certificate describes field data collection, structured surveys, qualitative interviews, analysis of banking and welfare access, and research documentation for local governance.
Document context
The original is shown as supplied. Its issue date precedes the end of the internship period stated in the document.
Click to read Research & project documents
DOCUMENT
Credit Sorting, Not Digital Salvation
What Financial Inclusion Does for Rural Women Borrowers · 12 pages
Ariana’s study of 188 adult women across six village clusters in Jhunjhunu separates account ownership, active digital use, and access to formal credit. It includes the questionnaire approach, measurement correction, analysis, and limitations, and acknowledges mentorship from Ekanto Ghosh.
Click to read Jhunjhunu District Administration · Youngest Research Lead
The paper acknowledges Ekanto Ghosh’s mentorship. The acknowledgement can be read in the full paper above.
Read the abstract, methods, and findingsAcademics & other team work
IGCSE Economics · Highest Mark in the World
Awards, selections & recognition
ACADEMIC AWARD
Outstanding Cambridge Learner Award
Highest Mark in the World · IGCSE Economics
November 2024 examination series.
Click to read COMPETITION WINNER
Capital Investments at Berkeley · Stock Pitch Competition
First Place · Fall 2025
Equity research, financial analysis, and investment presentation.
Click to read TEAM RECOGNITION
Conrad Innovator 2025–2026
Team Niraksha · Energy & Environment
The certificate names Ariana Agarwal, Mrityunjay Gupta, Yashkiti Jain, Ritwika Singh Sinver, and Aaditya Jain as Team Niraksha, in Energy & Environment.
Click to read TOP 100 SELECTION
Samsung Solve for Tomorrow 2026
Top 100 · FormFit · application 30814
The official list names Ariana Agarwal, Jevesh Jain, and Mrityunjay Gupta.
PERSONAL RECORD
University of Vermont
Citizen Scholar Book Award
University of Vermont · Citizen Scholar Book Award.
Document context
Listed in the personal portfolio brief; a separate award certificate was not supplied.
Lodha Genius Programme
RECOGNITION
Student Success Spotlight
Lodha Genius Programme
The supplied student spotlight records Ariana’s programme participation and Plas-Stick recognition.
Click to read Speaking, leadership & community
Photographs and full supplied video clips
