ITR-1 (Sahaj): Applicable to individuals with income from salary, one house property, other sources (excluding winning from the lottery and horse races), and having total income up to Rs. 50 lakhs.

ITR-2: Applicable to individuals and Hindu Undivided Families (HUFs) not eligible to file ITR-1, having income from salary, house property, capital gains, and other sources.

ITR-3: Applicable to individuals and HUFs who have income from business or profession.

ITR-4 (Sugam): Applicable to individuals, HUFs, and firms (other than LLP) with presumptive income from business or profession.

ITR-5: Applicable to firms, LLPs (Limited Liability Partnerships), Association of Persons (AOP), Body of Individuals (BOI), and Artificial Juridical Persons (AJP).

ITR-6: Applicable to companies other than companies claiming exemption under section 11 (income from property held for charitable or religious purposes).

ITR-7: Applicable to persons, including companies, who are required to furnish returns under sections 139(4A), 139(4B), 139(4C), and 139(4D) (relating to trusts, political parties, institutions, etc.).