PASS Securities Operations and Risk Management Examination Difficulty: Beginner 2 Questions   5 min read
📌 Chapter 3.4 — BACK OFFICE OPERATIONS

Picture a scenario where a prominent institutional client approaches your desk at 9:00 AM with an order to sell 50 lakh shares of a mid-cap stock, which represents 2% of the company’s total equity. If your dealer simply places this as a normal market order, the resulting price slippage could be catastrophic for your client and cause a massive, unintended price swing in the market.

In the back office, our primary duty is to ensure the execution of such large volumes is handled through the appropriate mechanism to maintain market stability and ensure regulatory compliance.

Block deals and bulk deals are the two primary avenues for these large-volume transactions in the Indian market, yet they function under vastly different operational constraints. A block deal is restricted to a specific window, currently a 15-minute period from 8:45 AM to 9:00 AM, and requires a minimum order size of INR 10 crore.

These trades are executed as single, proprietary transactions and are specifically designed to minimize market impact by separating them from the general liquidity pool of the continuous trading session. Operations teams must ensure these orders are entered precisely within the designated window, as any spillover into the regular market can result in severe audit observations.

Bulk deals, by contrast, are a reporting requirement for any transaction where the total quantity bought or sold exceeds 0.5% of the number of equity shares of a listed company. Unlike block deals, bulk deals are executed during the normal continuous trading hours and must be notified to the exchange by the broker immediately upon execution.

The operational challenge here is managing the reporting deadline; failure to report a bulk deal correctly within the exchange-mandated timeframe results in immediate regulatory scrutiny and potential penalties for the firm. While both mechanisms deal with high volumes, the former is a specialized execution window, while the latter is a post-facto disclosure obligation.

For an operations professional, the distinction is critical for your client contract notes and regulatory filings. If you misclassify a transaction, you risk submitting inaccurate data to the stock exchange, which invites queries from surveillance departments. Always verify the order value against the current exchange circulars before execution to determine if the client qualifies for the block deal window or if they must utilize the bulk deal reporting route. Mastery of these operational channels distinguishes a vigilant back-office professional from one who merely processes paperwork.

Nuance

⚠️ Nuance
The most frequent pitfall for candidates is the assumption that ‘block’ and ‘bulk’ are interchangeable terms for any large trade. Remember that a block deal is an execution facility that requires specific entry criteria, whereas a bulk deal is essentially a disclosure mechanism for trades executed in the normal market. A candidate must understand that confusing these can lead to a trade being rejected by the system or a non-compliance report being generated due to failure to report a trade that met the 0.5% threshold.

Check Your Understanding

Practice Question 1

An institutional client intends to execute a single trade for INR 15 crore in a highly liquid stock during the morning hours. To minimize price impact, which of the following is the most appropriate regulatory framework for this transaction?

Practice Question 2

If a broker executes a trade for a client that amounts to 0.7% of the total equity shares of a company during the continuous trading session, what is the primary operational obligation?

This is a companion read for Section 3.4 — BACK OFFICE OPERATIONS from PASS Securities Operations and Risk Management Examination by Akhilesh Gururani, available on Amazon Kindle.

Copyright © 2026 `Akhilesh Gururani. All rights reserved.