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Welcome to the eGyanKosh resource page for Unit-28: Infrastructural Data Collection Techniques, a vital component of the IGNOU curriculum for 2025. This study material is designed to provide students with a comprehensive understanding of the methodologies and tools used in the collection of infrastructural data. As part of IGNOU’s commitment to enhancing educational accessibility, we offer this valuable resource for free download, enabling learners to delve into the intricacies of data collection techniques and their application in various infrastructure projects. Whether you are a current student or a lifelong learner, this study material is an essential resource to support your academic journey and enhance your knowledge in this crucial field.