Just seven months back, two young Indian American siblings started mining cryptocurrency as a hobby. Today, 14-year-old Ishan and nine-year-old Aanya have set a goal to fund their college education with their earnings - about $30,000 a month. How were they introduced to the idea? As they speak to NDTV, Ishan recalls, "In February, I heard about bitcoin and cryptocurrency spiking up. I really wanted to invest in some... but I didn't have enough money to buy. So instead of buying full, I decided to just buy the equipment and earn it instead. And now (after having come this far), I am very proud of it."