An ITR-1 form is a return form for taxpayers that can only be filed by those who meet the above criteria. All others have to file ITR-2 or ITR-3. People who are not eligible for ITR-1 are:
1) If your income exceeds INR 50 lakhs
2) Agricultural income is above INR 5 thousand
3) Taxable capital gains
4) Income from business or any other profession
5) Income from more than one house property
6) If you are a director of an organization
7) Investment made in an unlisted equity share
8) If you own asset or financial interest outside India
9) Signing authority of an account outside India
10) If you are non-resident or not ordinarily resident
11) Income of any individual is taxable in hands of any other person
12) If any individual claims for foreign tax relief or double taxation,'.
13) If you are a joint-owner of a property
14) Deposition of over 1 Crore in the bank account