1. Taxsmile Portal:
Taxsmile is the first Indian company with a tax preparation and filing website that is authorised by the Income Tax Department. Income tax return above Rs 5 lakhs, eFiling income tax above five lakhs, Filing of returns online.
Register for online filing tax return at www.taxsmile.com
2. Government of India:
e-Filing Home Page, Income Tax Department, Government of India
sign up for e filing tax india at https://incometaxindiaefiling.gov.in/e-Filing/Registration/RegistrationHome.html