4AB › Aniket Bhardwaj
Aniket Bhardwaj
Research · Create · ShareThe founder’s own work: an invention, books and institutions.
5 things to openBooks by Mr. Aniket Bhardwaj
Chemistry books written by Mr. Aniket Bhardwaj for CSIR-NET, GATE and IIT-JAM — read every title here, inside 4AB.
GAURAW Research & Educational Academy
GAURAW Research & Educational Academy for Tutoring — explore our brands and projects, including DelhiHomeTutor and ABC Chemistry. Call or email us today.
Square Root Shortcut Trick
Learn the easiest square root shortcut for non-perfect square numbers: ²√F = ²√P + G1/G2.
Zero Error Education
Zero Error Education has transitioned to GAURAW Research & Educational Academy for Tutoring (OPC) Pvt Ltd.
Aniket Bhardwaj
Portfolio & books
About Aniket Bhardwaj
Aniket Bhardwaj is a chemistry educator, author and the founder of 4AB, based in Dwarka, New Delhi. He has been teaching since 2008, when he joined Zero Error Education in Delhi as a teacher at sixteen — the institute where he had himself prepared for his Class 10 board exams in 2006. (source)
He stayed with that organisation for eighteen years and five roles: student (2006), teacher (2008–2009), manager (2009–2013), director (2013–2019, registered under the Ministry of MSME) and chairman (July 2019 – June 2026, after its incorporation under the Ministry of Corporate Affairs), closing it in a planned way in June 2026. (source) Zero Error Education has since transitioned to GAURAW Research & Educational Academy for Tutoring (OPC) Pvt Ltd. (source) In all he has founded six ventures since 2008, among them ABC Chemistry and AB Publications. (source)
Education
- B.Sc. (Hons.) Chemistry, Ramjas College, University of Delhi, 2009–2013 — completed while working.
- M.Sc. Chemistry, College of Commerce, Magadh University, 2013–2015.
- Ph.D. research in Chemical Science at Magadh University since 2024, in quantum, nuclear and polymer chemistry.
Books
Five books for CSIR-NET, GATE and IIT-JAM aspirants, each readable online on 4AB: (books page)
- Square Root Shortcut Tricks — 14 pages, ISBN 978-93-5759-191-1
- Advanced Maths Tables — 86 pages, ISBN 978-93-5635-138-7
- General Aptitude — 174 pages, ISBN 978-93-5759-713-5
- PhD Coursework in Chemistry — 758 pages, ISBN 978-93-5717-711-5
- Periodic Table & Elements Data — 78 pages, ISBN 978-93-5626-428-1
The square-root shortcut
His method for the square root of a non-perfect square, √F = √P + (F−P)/(N−P), where P and N are the perfect squares either side of F, was worked out on 2 October 2024 and published on 2 February 2025; it was checked on every whole number from 1 to 225. (square-root page)
What he runs today
4AB Great Services, the site you are on, with Chemistry - Tools — the chemistry question bank, periodic table and calculator — at its centre. Phone: +91 92121 42427. (books page)
Elsewhere
Every fact on this page is taken from a page already published on aniketbhardwaj.com or 4ab.in, linked beside it. Spotted something wrong? Report it.