The Ministry of Corporate Affairs has notified the Corporate Social Responsibility (CSR) rules and they would come into effect from April 1. Under the new laws that govern companies, spending on CSR or social welfare activities is mandatory for certain classes of firms. They are required to shell out at least 2 per cent of their three-year average annual profit towards such works. Which of the following firms classify under the new law to make CSR spend?

1. Companies having a net worth of at least Rs. 750 crore


2. Companies having a minimum turnover of Rs. 500 crore


3. Companies with at least a net profit of RS. 5 crore