Eligibility criteria depend on the applicant type. Individuals must be salaried (18-60 years) or self-employed (18-65 years), with a minimum monthly income of Rs. 20,000 in major cities or Rs. 15,000 in other cities. Firms, LLPs, or companies should have been in existence for at least three years, with a minimum annual income of Rs. 2,40,000 in major cities or Rs. 1,80,000 in other cities. Hindu Undivided Families (HUFs) must meet similar income criteria and have a minimum of three years of existence, supported by IT returns.