>>213576343 (OP)
It's not just zero. It's the entire number system.
Here's the tip of the iceberg of Indian Mathematics contributions:
>The Hindu numerals (0-9) with place-value notation
>a concept so fundamental that it's literally the first Mathematical concept taught to kindergarteners
>forms the foundation of modern arithmetic: used in every calculator, grocery bill, credit card payment, large numbers, binary computing, and digital technology (can't do any of this shit with Roman numerals)
>x + (−x) = 0 made standard
>paves the way for algebra and daily applications like finance and engineering
>solutions for linear and quadratic equations
>establishes the basis of modern numeric routines
>Aryabhata advances trigonometry and algebra
>introduces sine tables and systematic approaches to solving equations
>Kuttaka method provides solutions for Diophantine equations
>lays groundwork for modular arithmetic
>underpins cryptography, secure transactions, and PIN systems
>Bhaskara II’s “Lilavati” covers arithmetic, algebra, geometry, and combinatorics
>foundation for interest calculations, construction, and everyday tasks
>Chakravala method solves Pell’s equation, is an early step in public-key cryptography
>Madhava and Kerala School work out infinite series for π, sine, and cosine
>Pioneer calculus (series representation) centuries before Newton
>critical for modern analytics, weather models, and rocket guidance
This doesn't cover everything, so here's a wikipedia page for an exhaustive list
https://en.wikipedia.org/wiki/Indian_mathematics