Zerodha transparency discloures

Issues with display of order statuses (NSE, BSE, MCX)

Mon, 08 Jul 2024 18:24:27 +0530

Duration: 09:19 AM to 09:40 AM Incident: Intermittent issue with the display of order statuses on our trading platform on NSE, BSE and MCX. Cause: Some of our users faced issues with the status update of orders placed intermittently. However, these orders were successfully placed on the exchange and, the order placement was not impacted. Preliminary Report: Reporting Format 8th July 2024 - Zerodha - Preliminary Report RCA: Reporting Format 8th July 2024 - RCA

Issues with display of order statuses (NSE, BSE)

Mon, 29 Jan 2024 10:36:21 +0530

Duration: 09:36 AM to 09:44 AM Incident: Intermittent issue with display of order statuses on our trading platform on NSE and BSE. Cause: There was an intermittent delay with the display of order statuses. However, the order placement, order modification and order cancellation were not impacted. Approx clients affected: 40000 to 42000 Preliminary Report: Reporting Format 29th January 2024 - Preliminary Report RCA: Reporting Format 29th January 2024 - RCA

Intermittent issue with login on Kite (NSE, BSE, MCX)

Mon, 04 Dec 2023 10:42:34 +0530

Duration: 09:18 AM to 09:55 AM Incident: There was an intermittent issue with login to our trading platform on NSE, BSE and MCX exchanges. Additional Info: Due to an intermittent issue, some of our users were not able to login to the kite web application. Most of our users were able to login and place orders via the kite mobile application. However, there were no issues with order placement, order modification and order cancellation. Cause: There was an intermittent issue with login to our trading platform. Additionally, we have posted a detailed bulletin of the issue here. Approx clients affected: 60000 to 70000 Preliminary Report: Reporting Format 4th December 2023 - Preliminary Report RCA: Reporting Format 4th December 2023 - RCA

Issues with display of order and position statuses (NSE, BSE, MCX)

Mon, 06 Nov 2023 10:49:47 +0530

Time of Incident: 09:15 AM Incident: Intermittent issue with display of order and position statuses on our trading platform on NSE, BSE and MCX exchanges. Cause: There was an intermittent issue with the display of order and position statuses on our trading platform owing to an issue with the position stream on one of the servers. Additionally, we have posted a detailed bulletin of the issue here. Approx clients affected: 90000 to 95000 Preliminary Report: W ebsite copy of Reporting Format 06th Nov 2023- Zerodha RCA: Reporting Format 06th Nov 2023- Zerodha - RCA

Issue with positions display (NSE, BSE, MCX)

Tue, 31 Oct 2023 10:00:58 +0530

Time of Incident: 09:00 AM Incident: Intermittent issue with position display on our trading platform on NSE, BSE and MCX exchanges. Cause: There was an intermittent issue with display of positions on our trading platform owing to an issue with the position stream on one of the servers. Additional Info: The impact was on the display of positions intermittently. But, the affected positions were displayed to clients post multiple refreshes. The order status was displayed on the orders page correctly for all users. The order placement, order modification and order cancellation were not impacted. Approx clients affected: 25000 to 30000 Preliminary Report: Reporting Format 31th Oct 2023- Zerodha RCA - Reporting Format 31th Oct 2023- Zerodha - RCA

Issue with order placement, order modifications, and order cancellations (BSE)

Fri, 07 Jul 2023 15:44:48 +0530

Duration: 02:47 PM to 03:30 PM Incident: Order placement, order modifications, and order cancellations on our trading platform were intermittently impacted on BSE, BFO and BCD segments from 02:47 PM to 03:30 PM. Cause: Order placement, order modifications, and order cancellations on our trading platform was impacted intermittently owing to a network connectivity issue at OmneNEST’s end (exchange empanelled RMS and OMS vendor). RCA from our OMS vendor OmneNEST is awaited. Further, we are in touch with the exchange as well to ascertain the root cause of the disconnection, as multiple brokers reported issues with order placement during that time period. Additionally, we have posted a detailed bulletin of the issue here. Approx clients affected: 13000 to 14000 Preliminary Report: 7th July 2023 Reporting Format - Preliminary report Root cause analysis (RCA): 7th July 2023 Reporting Format - Zerodha - RCA

Issue with order placement, order modifications, and order cancellations (BSE)

Fri, 30 Jun 2023 16:30:06 +0530

Duration: 03:08 PM to 03:22 PM Incident: Order placement, order modifications, and order cancellations on our trading platform were intermittently impacted on BSE, BFO and BCD segments from 03:08 PM to 03:22 PM. Cause: Order placement, order modifications, and order cancellations on our trading platform was impacted intermittently owing to a network connectivity issue at Refinitiv’s end (exchange empanelled RMS and OMS vendor). RCA from our OMS vendor Refinitiv is awaited. Approx clients affected: 4000 to 5000 Preliminary Report: 30th June 2023 Reporting Format - Preliminary report Root cause analysis (RCA): 30th June 2023 Reporting Format - Zerodha - RCA

Issue with data feeds (NSE, BSE, MCX)

Wed, 14 Jun 2023 13:44:05 +0530

Duration: 12:40 PM to 12:48 PM Incident: There was an issue with data feeds on our trading platform between 12:40 PM to 12:48 PM due to an issue with internet service providers (ISPs). The issue did not impact order placement, modifications, or cancellations. Cause: The data feeds were down on our trading platform due to the Airtel P2P line flapping. RCA from our ISP vendor Airtel is awaited. Approx clients affected: 46000 to 47000 Intimation Report: 14th June 2023 Reporting Format - Zerodha Root cause analysis (RCA): 14th June 2023 Reporting Format - Zerodha - RCA

Issue with the order placement, order modification and order cancellation (NSE)

Thu, 27 Apr 2023 10:34:23 +0530

Duration: 09:36 AM to 09:48 AM Incident: Order placement, order modifications, and order cancellations on our trading platform were intermittently impacted on NSE (NFO segment) from 09:36 AM to 09:48 AM. Cause: Order placement, order modifications, and order cancellations on our trading platform was impacted intermittently owing to a network connectivity issue at Refinitiv’s end (exchange empanelled RMS and OMS vendor). RCA from our OMS vendor Refinitiv is awaited. Approx clients affected: 26000 to 27000 Intimation Report: Website Copy of 27th April 2023 Reporting Format - Zerodha Root cause analysis (RCA): 27th April 2023 Reporting Format - Zerodha -RCA

Issue with the order placement, order modification and order cancellation (BSE)

Fri, 10 Feb 2023 13:01:55 +0530

Duration: 12:33 PM to 01:01 PM Incident: Order placement, order modifications, and order cancellations on our trading platform were impacted intermittently on BSE from 12:33 PM to 01:01 PM. The impacted users had the option of placing orders on NSE during the entire duration of the issue. Cause: Order placement, order modifications, and order cancellations on our trading platform was impacted intermittently owing to issue with one of the servers at Refinitiv’s end (exchange empanelled RMS and OMS vendor). RCA from our OMS vendor Refinitiv is awaited. Approx clients affected: 9000 to 11000 Update: Preliminary Report - 11-02-2023 - Website Copy of Preliminary Report glitch dated 10-02-2023 - BSE Update: Root cause analysis (RCA) - RCA glitch dated 10-02-2023 - BSE

Issue with the order placement and viewing positions (NSE, BSE, MCX)

Thu, 15 Dec 2022 21:36:10 +0530

Duration: 03:47 PM to 04:13 PM Incident: There was an issue with the order placement temporarily on Kite for some of our users from 03:47 PM to 04:13 PM owing to a certain process failing at the OMS server managed by Refinitiv (exchange empanelled OMS vendor). Equity cash post-market session, currency derivative, and commodity derivative orders were impacted. Further, some users faced intermittent issues with the display of positions till 09:36 PM. Cause: Order placement on our trading platform was impacted owing to a process failing on one of the servers at Refinitiv’s end (exchange empanelled RMS and OMS vendor) Approx clients affected: 1500 to 2000 Update: 16-12-2022 - Preliminary report - Preliminary Report glitch dated 15-12-2022 Update: 12-01-2022 - Root cause analysis (RCA) - RCA glitch dated 15-12-2022

Issue with the order display and order modification (NSE, BSE, MCX)

Tue, 22 Nov 2022 12:05:24 +0530

Duration: 09:23 AM to 10:10 AM Incident: There was an intermittent issue with the order display and order modification temporarily on Kite for some of our users due to issue with the RAM on one of the servers at Refinitiv’s end (exchange empanelled RMS and OMS vendor). The said issue did not affect all users, but only a set of users operating out of a particular Silo. Call and trade desk was open for the impacted users. Cause: Order display and order modification on our trading platform were impacted intermittently for a set of clients owing to an issue with the RAM on one of the servers at Refinitiv’s end (exchange empanelled RMS and OMS vendor) Approx clients affected: 9000 - 10000 Update: 23-11-2022 - Preliminary report - Preliminary Report glitch dated 22-11-2022 - NSE Update: 14-12-2022 - Root cause analysis (RCA) - RCA glitch dated 22-11-2022 - NSE

Issue with the order placement, order modification and order cancellation (NSE)

Mon, 03 Oct 2022 11:25:02 +0530

Duration: 09:00 AM to 09:31 AM Incident: There was an intermittent issue with the order placement, order modification and order cancellation temporarily on Kite for some of our users from 09:00 AM to 09:31 AM owing to OS corruption. Equity cash market orders and equity derivative AMO orders were impacted. Cause: Order placement on our trading platform was impacted intermittently owing to OS corruption triggered inadvertently by a scheduled reboot on the primary server of exchange at Refinitiv (exchange empanelled OMS vendor). Approx clients affected: 1000 to 1500 Update: 31-10-2022 - Root cause analysis (RCA) - RCA dated 03-10-2022

Issue with the order placement, order modification and order cancellation (NSE)

Thu, 01 Sep 2022 16:39:30 +0530

Duration: 01:51 PM to 02:41 PM Incident: Order placement on our trading platform was impacted intermittently from 01:51 PM to 02:03 PM due to unavailability of disk space required by a certain process in the exchange adapter component managed by Refinitiv (exchange empanelled OMS vendor). Further, order cancellation on our trading platform was impacted for those orders that were placed during the initial order placement issue (i.e. 01:51 PM to 02:03 PM) from 02:03 PM to 02:41 PM due to the adapter reconciliation process. For those users who were impacted due to the adapter disconnection, ‘Call and trade’ desk was open. Cause: The cause of glitch was because of the unavailability of disk space required by a certain process in the exchange adapter component managed by Refinitiv (exchange empanelled OMS vendor). Approx. clients affected: 5000 to 7000 Update: 27-09-2022 - Root cause analysis (RCA) - RCA glitch dated 01-09-2022-NSE

Issue with the display of orders, holdings & positions (NSE, BSE, MCX)

Tue, 21 Jun 2022 14:45:38 +0530

Duration: 12:04 PM to 12:50 PM Incident: Connectivity to our trading platforms (along with many other websites across the globe) was impacted intermittently from 12.04 PM to 12.50 PM on 21-06-2022 owing to intermittent connectivity issues via the Cloudflare network for users on certain ISPs. This caused intermittent issue with the display of orders, holdings & positions temporarily on Kite for some of our users. The users could reach our website post multiple retries even when the issue was ongoing. For those users who were impacted Call and trade desk was open. Cause:

The internet connectivity to our trading platform was impacted due to a problem at Cloudflare’s end (Cloudflare is a vendor that provides CDN, network capacity, and DDoS protection to Zerodha’s public-facing internet properties).
The issue happened outside our infra at the network capacity provider's BGP configuration.
The issue was at the Border Gateway Protocol (BGP) level, affecting all the Disaster Recover (DR) sites across all networks across countries.
Cloudflare has published a postmortem report about the issue explaining in detail as to what went wrong.

Approx. clients affected: 68000 to 80000 Update: 14-07-2022 - Root cause analysis (RCA) - RCA glitch dated 21-06-2022

Issue with the display of orders, holdings & positions (NSE, BSE, MCX)

Wed, 15 Jun 2022 18:55:01 +0530

Duration: 04:21 PM to 04:59 PM Incident: Internet Connectivity to our trading platform (along with many other websites) was impacted from 04:21 PM to 04:59 PM owing to intermittent connectivity issues via the Cloudflare network for users on certain ISPs. This caused intermittent issues w.r.t. the display of orders, holdings & positions temporarily on Kite for some of our users. The users were able to reach our application post multiple retries even when the issue was ongoing though. For those users who were impacted Call and trade desk was open. Cause:

The internet connectivity to our trading platform was impacted due to a problem at Cloudflare’s end (Cloudflare is a vendor that provides CDN, network capacity, and DDoS protection to Zerodha’s public-facing internet properties).
A bug in their internal WAF-managed ruleset deployment process resulted in old ruleset being referenced when not needed. Specifically, several identical replicas of the several Cloudflare Managed Rulesets existed in their systems.
Purging of unnecessary versions to perform database cleanup resulted in increased error logging in their internal systems which triggered the incident.

Approx. clients affected: 7000 - 9000 Update: 14-07-2022 Root cause analysis (RCA) - RCA glitch dated 15-06-2022 - NSE

Issue with the display of orders, holdings & positions (MCX)

Fri, 24 Dec 2021 23:55:35 +0530

Duration: 10:39 PM to 11:46 PM Incident: Intermittent issue with the display of orders, holdings & positions temporarily on Kite for some of our users. The incident was limited to the display of order status. However, there was no issue with login, order placement (including modification & cancellation), order execution, order confirmation, margin updates, risk management. Cause: Internet Connectivity to our trading platform (along with many other websites) was impacted from 10:39 PM to 11:46 PM owing to an outage with a major ISP, TCL (Tata Communications Limited), across multiple data centers. TCL faced an issue of route leakage which impacted many customers including AWS, Google and others. Approx. clients affected: 1000 - 1200 Update: 21-01-2022 - Root cause analysis (RCA) - RCA glitch dated 24-12-2021