In this short, he says take Rs 1 crore + invest it in index fund = get Rs 10 lakh per year. So you get 1 crore lumpsum as well as 10 lakh interest.
But if you take Rs 10 lakh yearly then you will only get 10 lakh not 1 crore.
Which instruments are they talking about? Which asset is giving assured interest every month? Is it as simple as it looks? Are they exaggerating? What do you think?