ITR-1 SAHAJ type is the most generally form used by people to file their Tax Returns with the Income Tax Department of India. People who have their financial gain around ₹ 50 Lakhs and have earned their financial gain for the fiscal year through wage or Pension, just one House Property and different sources excluding lottery, race-horses, legal gambling etc. are eligible to file their Income Tax Return using ITR-1.
Associates who have financial gain from foreign assets, agricultural financial gain that exceeds Rs. 5000, financial gain from Business or Profession and financial gain from quite one house property don't seem to be eligible to file Income Tax Return using ITR-1 type.
Such as: House Wife, Farmer, Doctors, Engineers or any other person.