Home mushroom farming is a low-investment way for beginners to earn steady income. Using small indoor spaces, oyster mushrooms can be grown in 25-30 days. With a setup cost of ₹2,500-₹7,000 and per-batch expense under ₹250, beginners can earn ₹900-₹1,000 per cycle. The model focuses on hygiene, humidity, and repeatable maths rather than land or heavy equipment.