This document details the stringent application of Goods and Services Tax (GST) Input Tax Credit (ITC) rules, focusing on recent amendments that restrict ITC claims. It explains how the reduction in ITC availability, from 20% to 10% of eligible credit, significantly impacts businesses by blocking working capital. The guide also covers new Rule 86A, which allows authorities to block credit in electronic ledgers under certain conditions, and highlights the increased compliance burden and potential cash flow issues for businesses. It's essential reading for business owners and finance professionals seeking to understand and manage these critical GST changes.