This document discusses income that is taxable under the head "profits and gains from business or profession" in India. It notes that income from any trade, commerce, manufacture, adventure, profession requiring specialized skills, or vocation with specialized skills falls under this category. It lists various types of income taxable here, such as profits from business/profession, compensation, benefits from business/profession, export incentives, interest from firms, sums for not sharing intellectual property, life insurance payouts, managing agency profits, and speculative transaction profits. Deductions are allowed for rent, taxes, repairs, and insurance of business premises, as well as current repairs and insurance of machinery, plant and furniture used for business.