Updated for 2026 Syllabus Detailed Explanations High-Yield Core Concepts

Bank Promotion Exam Guide

Banking Awareness | Banking Knowledge | for all Bank Exams

Module: General Practice

Q69: Which of the following best describes the primary operational difference between the legacy Electronic Clearing Service (ECS) and the modern National Automated Clearing House (NACH)?

A
ECS is managed by NPCI, while NACH is managed by RBI.
B
ECS allows for same-day settlement, whereas NACH requires T+2 settlement.
C
NACH offers a centralized Dispute Management System (DMS) and standardizes mandates nationwide, whereas ECS was regionally fragmented without a central dispute mechanism.
D
NACH is used exclusively for credit transactions (Salaries), while ECS is used only for debit transactions (Bills).
✅ Correct Answer: C
Concept: NACH vs.
ECS (Evolution). Structure: Governance: ECS was RBI-driven (Legacy). NACH is NPCI-driven (Modern). Architecture: ECS had regional centers (local clearing). NACH is a centralized web-based system covering the entire country (removing geographical barriers). Key Advantage: NACH integrates a Dispute Management System (DMS) and Mandate Management System (MMS), which ECS lacked.
This reduces turnaround time and friction in bulk processing.