RAA is Running Account Authorization. Here’s what it means to you: you do not need to keep transferring funds to Arihant every time you wish to trade. Your trading account cash can be securely kept with Arihant for a period of up to 90days. You can use this fund for buying any security. You can also withdraw from your Arihant balance during this period. However, after a period of 90 days, Arihant will have to mandatorily transfer the funds to your bank account registered with them.  

By enabling RAA you’re choosing to keep funds in your Arihant balance for the selected settlement period (30/90 days).