Retention Statement of NSE-EQ

Hi ,

Today i got mail from zerodha, what does this mean? And in PDF it show Statement of the Date : 16/10/2017
. Can somebody explain me this?

Answered here. Also, read about the quarterly settlement of funds in your trading account. This is the reason for sending the retention statement.

thanks srinivas, Sorry i didnt get anything from blog. Can you in short tell what does it do ? do i have to pay anything?