To download the income tax calculator for the financial year 2009-10 and Form 16 for salaried individuals in the assessment year 2010-11, you can visit the official website of the Income Tax Department of India. Look for the specific section related to tax calculators or forms, where you should be able to find the necessary tools and documents for the mentioned years. Ensure that you download the correct forms and calculators to accurately assess your tax liabilities and obligations for the respective financial year. If you encounter any difficulties or need further assistance, you can reach out to the Income Tax Department helpline or visit their local office for guidance and support.