As per Wikipedia the indirect tax (such as sales tax, a specific tax, value added tax (VAT), or goods and services tax (GST)) is a tax collected by an intermediary (such as a retail store) from the person who bears the ultimate economic burden of the tax (such as the consumer). The intermediary later files a tax return and forwards the tax proceeds to government with the return.
You can see procedure to file income tax online and service tax online procedure here.