[nilaykumar]

Note: Capital is available to read for free here: https://www.marxists.org/archive/marx/works/1867-c1/

The beginning of Capital is quite dense (establishing the basic definitions of a study often is, and Marx's dialectical approach takes some getting used to if, like me, you never could understand Hegel) so I would recommend reading it along with David Harvey's lectures available on Youtube. However, the book does open up from there and becomes very much more concrete: working day lengths in the factory, increasing automation of industry, transition from feudalism by expropriation of land from farmers, ...

It is of course important to understand the works that Marx was critiquing or building on. Smith's Wealth of Nations, for example, is available for free from Standard Ebooks (https://standardebooks.org/ebooks/adam-smith/the-wealth-of-n...). This translation is very readable so I encourage you to take a look.