The definition of a 'person' under the Income Tax Act is comprehensive and inclusive. It encompasses individuals, Hindu Undivided Families (HUF), companies, firms, associations of persons, bodies of individuals, local authorities, and every other artificial juridical person. This broad definition ensures that all entities capable of earning income are brought within the tax net.

Income tax is classified as a direct tax because the burden of the tax cannot be shifted to another person. The individual or entity that earns the income is legally responsible for paying the tax directly to the government. Unlike indirect taxes, which are levied on goods and services and passed on to the consumer, income tax is paid directly by the taxpayer based on their earnings.

Tax avoidance refers to the utilization of legal methods, loopholes, and provisions within the tax law to minimize the amount of tax payable. It is distinct from tax evasion, which is illegal, and tax planning, which involves arranging financial affairs to maximize tax efficiency in a proactive manner.

Under the Income Tax Act, an Indian company is always considered a 'Resident' in India, regardless of where its control and management are situated. The location of control and management is a test applied to foreign companies, but for domestic companies incorporated in India, the residential status is automatically resident.

Tax planning is inherently futuristic, as it involves arranging financial affairs to optimize tax liability within the framework of the law. Its primary objective is to reduce tax liability through legal means. It is distinct from tax management, which focuses on compliance, and it is generally considered to have a broader scope than mere tax avoidance or evasion.

Historically, direct taxes (such as corporate and personal income taxes) have been a primary and significant source of revenue for the Indian government. While indirect taxes like GST are substantial, direct taxes are often cited as a major pillar of fiscal revenue in economic literature regarding India's tax structure.

The State bears the primary responsibility for providing social security to its citizens. This obligation involves implementing policies and programs that ensure basic protection, including access to essential healthcare, food, shelter, and sanitation. By establishing these safety nets, the government aims to protect vulnerable populations and maintain social stability, ensuring that citizens can meet their fundamental needs during periods of economic hardship.

Tax planning is the legal arrangement of one's financial affairs to minimize tax liability by utilizing available exemptions, deductions, and rebates. Unlike tax evasion (which is illegal) or tax avoidance (which often exploits loopholes), tax planning operates strictly within the framework of the law to optimize tax efficiency.

Residence-based taxation is a fundamental principle where a country taxes its residents on their worldwide income. While source-based taxation also exists, the question asks for the rule regarding the recipient's residence. In most international tax treaties and domestic laws, the residency status of the taxpayer is a primary determinant for the right to tax income, often subject to tie-breaker rules.

Statement 1 is false because proportional tax applies a constant rate regardless of income level; progressive tax follows 'higher income, higher tax'. Statement 2 is true as administrative efficiency is a canon of taxation. Statement 3 is true as income tax is a direct tax on an individual's total earnings. Thus, 2 and 3 are correct.