I have been wanting to write about this. Unfortunately time is something I do not have in current period.

The obstacles Hindus had to overcome to build Tejas is legendary. The sheer engineering gap is so huge that we leapt from 2G fighter plane (gnatt) to 4.5G one (LCA) https://twitter.com/VinodDX9/status/1345729304429117440

The lag Hindus had in field of Technology has been huge. We have been playing the game of "catch" since 1600s.

I have tried alluding to it in my article on history of Indian shipbuilding and engineering.

http://kalchiron.blogspot.com/2015/03/the-story-of-wadias-indics-loss-of.html

I respect Dhirubhai for this. He gatecrashed into the exclusive parsi bombay-club (Indira's vision has to be acknowledged here - She helped Dhirubhai gain access and control to heavy-industry).

Modi did same with Adani.

We still do not own critical technologies (eg. Jet-Engines, Semiconductor-chip foundries to name a few, many of them actually).

But for a civilization which started churning out chemical engineers for first time 1940s (when EU had 100 year headstart), it is a decent achievement

India was leader in metallurgy. We were decent in Ceramics too (of course, we were not in the league of China - they excelled in ceramics). We were excellent in chemistry, medicine, food, brewing and water-related technologies.

Not counting Civil Engg here (one just needs to visit our temples for that).

Technology of ceramics evolved into semiconductors

Technology of brewing evolved into fermentations and all the modern biotechnology

Material sciences still has a continuous tradition with metallurgy

I remember reading about Marathas storing pots of specially "rotten ghee" (that is the word used in Marathi - कुजके तूप. mind you, not सडके तूप). There is difference between कुजवणे & सडणे/सडवणे

anyways, this ghee was used as an antiseptic on wounds to prevent them from festering

I have speculated that this was fungal fermentation of special-ghee. Fungi release antibiotics as they grow on any substrate.

Why Ghee? Because most antibiotics are water-insoluble and lipophilic. :)

Applying that ghee on a wound would stop sepsis and infection. In the period where men died more frequently due to festering wounds, India managed decently well.

All these technologies did not (Could not) become "science" due to British interference.

The medieval fermentation technologists (our brewing castes, our fermented-ghee making castes) were either killed off or died or did not care to pass on these technologies to next generation

I am sure there are such stories in almost every field of science and technology.