I want to be self employed, which work amp; field should i go for? -

I am accountant, having computer knowledge, I want small scale industries

You just answered your own question. For a self employment (a.k.a. small business) situation to have even a reasonable chance at success, you need to be working in a field or industry where you already have some expertise, and hopefully a professional network of contacts to help you drum up work. On-the-job-training is the last thing you want to be trying while starting up your new business.As for how you define your target market, e.g. small scale industries (but which ones: medical tech, software, manufacturing, etc.?), you need to research the alternatives and find out which one(s) are the most likely to buy your services.