Exporters of services to abroad

Hello!

I earned foreign currency equal to $10000 in 2015-16 from different countries. Which income tax form number should I fill? Is the income taxable  or not. I take orders for writing tasks. I am not a registered company nor a proprietor. I do business online and have hired writers from abroad. I pay them through credit card. I have a website. Are there any incentives for me? 

Thank you!