> could you name some Indian makers who can create a steam engine, or internal combustion engine, or electrical engine from scratch? Or any that have innovated in that sphere?
You seem to be focusing too much on anger and condescension here. I'll stop with one answer for your question above. You can derive your own conclusions - G.D.Naidu. [1] I'm sure there are at least several more that can be found by searching online.
[1]: https://en.wikipedia.org/wiki/Gopalswamy_Doraiswamy_Naidu