To edit your SIP, go to your Investments, select the smallcase with active SIP. Click on Edit SIP
SIP mode - You can toggle SIP mode between Manual and Auto
Next SIP Edit: Update your next SIP due date. You will receive a notification when SIP is due
Frequency: Choose from weekly, fortnightly, monthly or quarterly when setting Manual. Auto-SIP supports only weekly, fortnightly and monthly
Amount: Enter any amount greater that the suggested minimum SIP amount
When selecting Manual SIP option, orders are not executed automatically. You will receive a notification the day SIP is due
Auto-SIP orders are executed automatically on the due date, funds will be debited from your Zerodha trading account. You will receive an email regarding order update status, when your Auto-SIP is due.