What are some of the scientific and technological advancements of ancient India?

What are some of the scientific and technological advancements of ancient India?

For sake of clarification my “ancient India” was the period from past 2000 to past 40 generations and geographical extent was restricted to the current boundary of Indian sub continent.

In the era of WhatsApp Universities unsubstantiated, virally circulated fictitious facts and zero investment Blogger publications of self proclaimed inventions or hyper linking with more dubious authors; we have to ask with ourselves following two questions.

1.   Do we understand why science is required to be studied?

2.   What meaning we understand of technology?

To answer our question #1 about science; here I am quoting a fellow Quoran

“Anything that you can define and test falls within the realm of science. Science is the word of ‘coming to understanding’ “

To answer our question #2 about technology a simple Google search shows us technology meaning

the application of scientific knowledge for practical purposes, especially in industry.

Now question arrives which was the biggest industry in era we are talking about of ancient India.

And here are the 200 million people to be feed in less than 4.4 million square kilometre of earth surface just at the end of that era.

For sake of benchmarking just compare the current population 325 million of United States of America to fed from the 9.834 million km² of earth surface with all the latest gadgets like motor pump, electricity, insecticide spraying by aircrafts and ploughing with machines like this

https://www.youtube.com/watch?v=-uSmVB1czQQ

and like this

https://www.youtube.com/watch?v=kafmjiJ31WM

and all this with an efficiency of 9.834/325 = 3.03 hectare per person lower than ancient India’s 2.20 hectare per person achieved; 1000 year ago from today.

Now come to the question raised by us “which was the biggest industry” in era we are talking about?

So by our previous discussion we can conclude that agriculture was the biggest industry in that era; feeding 1000 year back from today, peoples of entire subcontinent; at an efficiency of 138% compared to the current United States’ (with all its modern gigantic machinery)

So I just described one scientific and technological advancements of ancient India; here and it  was so big that if we sit to write just few ingredient of it in detail; it is going to become lengthy enough to attract comments likehttps://www.quora.com/Why-was-India-known-as-the-Golden-Bird-Sone-ki-Chidiya-in-the-ancient-times/answers/14072548/comment/12631546