When you open your Arihant trading account, the equity cash and the mutual funds segments are activated by default. You can start investing and trading in them instantly. However, since trading in derivatives is risky and is recommended for seasoned traders, additional income proof documents are required by the regulator (SEBI), if the user wants to trade in futures and options. You can upload the relevant proof on the document upload page of your application. To understand which documents are valid as income proof click here.