Please don’t use any of their service. I tried few, all of them are some or other way bad.
Please try to do it using income tax website. It gives you a MS-Excel based tool, OR Java based application to enter your tax details.
If you think your tax is complex in nature, please find a good Tax consultant to help you with this process. Praying god that this tax filing will get much more simple over a period of time.
Very very bad response.