In my opinion, your prices are too low on the higher end. A normal tax return preparer charges something like Rs 250 (negotiable, particularly on bulk deals) to around Rs 500 for a simple ITR-1/ITR-2 return. For people who require audited returns, It would be an order of magnitude more. I take it you don't do those :)
The wording "Pricing starts from free." seems a little ominous with no actual pricing information up front. How much personal information will I have to fill in before you spring some charges on me?
I'd rather read something like "File for free" if that's what you do at your basic level.
Right now we charge from $5.5 to $30 for professional CA support. (CA in India is similar to a CPA in the US)