As per the running account settlement rules, the unutilized portion of your funds in your trading account should be refunded by the broker to the client's registered bank account. To prevent this from happening, make sure to place at least 1 trade in a month that utilizes the entire amount (This can be in any segment including equity). For more information, read this circular by SEBI180 and these NSE FAQs140.
Previously, the client had an option to choose the settlement periodicity of 30 & 90 days. However, now brokerages are required to settle do the settlement every 30 and 90 days. Yes, many clients have complained saying that it is very inconvenient to keep transferring funds into the account every now and then, but there's no way around it as of now. We encourage you to put a calendar reminder every month to check your account balance and make sure that it is funded.
To help make things easier, we've waived off the fund transfer charges48. So you won't have to incur any fees to transfer funds into your FYERS Account. Hope this helps to some extent.