Indian Stock Exchanges To Remain Open For Special Mock Trading Session On March 15, 2025

The Indian stock exchanges, which generally remain closed on weekends, will open for a special mock trading session on March 15, 2025. The Bombay Stock Exchange (BSE) and the National Stock Exchange (NSE) are conducting this session to test the resilience and preparedness of their trading infrastructure.

Earlier this month, on March 1, NSE and BSE held a similar mock trading session. These sessions are conducted purely for testing and familiarization purposes and do not involve any margin obligations or financial settlements.

Purpose Of Mock Trading Sessions

Mock trading sessions are designed to assess the exchanges' readiness in the event of unexpected market disruptions, such as a security breach or a system failure. In such cases, trading operations can be temporarily shifted to a disaster recovery site to ensure continuity. These exercises help exchanges and market participants prepare for real-world contingencies.

Mock Trading Session Details

As per NSE's latest circular, the exchange will conduct a mock trading session in the Commodity Derivatives Segment on Saturday, March 15, 2025, with the following schedule:

Mock Trading from Primary Site

Normal Market open time	11:00 hours
Normal Market close time	15:00 hours
Position Limit/Collateral value set up cut off time	15:10 hours
Trade modification end time	15:10 hours
Live Re-login start time	17:00 hours
Live Re-login close time	17:30 hours

Technical Updates & NEAT Adapter Version Changes

NSE has instructed trading members to use the latest NEAT Adapter version for the Equity Derivatives Segment during the session.

The old NEAT Adapter application (Version 1.0.19 for Windows & Linux) will be supported until May 2, 2025. From May 3, 2025, it will be mandatory to use the new NEAT Adapter (Version 1.0.20 for Windows & Linux).

Guidelines For Participation In The Mock Trading Session

All members eligible to trade in the Commodity Derivatives Segment (COM segment) in the live market areautomatically enabled to participate in the mock session. Members must ensure the following:

1. Connectivity Check: Verify successful connection to the Exchange host from the intended IP.

2. Box ID Setup: Ensure the Box ID with appropriate messages has been created on the IP in the respective trading segments.

3. Non-NEAT Frontend (NNF) Applications: If participating via NNF applications, ensure the User ID is of type dealer, is converted for NNF, and mapped with the correct IP.

4. User & Branch Limits: Set appropriate branch/user limits via the corporate manager terminal before placing orders.

5. Request Submission for Exchange Actions: For specific requests, members must email the exchange with User ID and segment details for actions such as:

a. Pro Enablement
b. CTCL Conversion
c. Corporate Manager Password Reset
d. Unlocking Corporate Manager User ID
e. Changing User ID Trading Rights (PRO to CLI, PRO+CLI, etc.)

6. User ID Management: Password resets and unlocking for all other types of user IDs must be managed internally by members via the corporate manager user ID in their respective segments.
Market participants are encouraged to actively engage in these sessions to test their systems and stay prepared for any unforeseen disruptions.