The question
"Last chapter you saw one company can fall 40% in a bad year. So is the answer to buy 50 companies? With ₹500 a month?"
Yes — and there is a machine built exactly for this. The mutual fund is the most important invention in this level: it lets a student with ₹500 own a piece of dozens or hundreds of companies at once, managed by professionals, for a fee smaller than a plate of chole bhature.