The Survey of India Act, 1905 is the primary legislation that governs the management of geographical data in India. It establishes the Survey of India as the national mapping agency and provides the legal framework for the collection, compilation, publication, and dissemination of geographical data.

The Survey of India is the custodian of geographical data in India. It is responsible for the collection, compilation, publication, and dissemination of geographical data, including topographic maps, aerial photographs, and satellite imagery.

The Remote Sensing Data Policy, 2011 aims to regulate the acquisition and dissemination of remote sensing data, promote the use of remote sensing data for various applications, and establish a framework for data sharing and collaboration.

The National Geospatial Policy, 2020 aims to provide a comprehensive framework for the management of geographical data, promote the use of geospatial data for various sectors, and facilitate data sharing and collaboration among stakeholders.

The primary stakeholders in the management of geographical data in India include government agencies, private companies, academic institutions, and non-governmental organizations.

The key challenges in the management of geographical data in India include lack of coordination among stakeholders, limited access to data, and data quality issues.

Some of the initiatives taken by the government to improve the management of geographical data in India include the establishment of the National Geospatial Policy, 2020, the development of the National Geospatial Data Framework, and the promotion of data sharing and collaboration.

The potential benefits of effective management of geographical data in India include improved decision-making, enhanced efficiency and productivity, and better planning and resource allocation.

Some of the key recommendations of the National Geospatial Policy, 2020 include the establishment of a National Geospatial Data Repository, promotion of open data and data sharing, and capacity building and skill development.

The Geospatial Data Promotion and Development Committee (GPDDC) is responsible for advising the government on matters related to geospatial data, promoting the use of geospatial data for various applications, and facilitating data sharing and collaboration among stakeholders.

The National Geospatial Data Framework (NGDF) provides a common framework for the management of geographical data, facilitates data sharing and interoperability, and promotes the use of geospatial data for various applications.

Some of the key challenges in the implementation of the National Geospatial Policy, 2020 include lack of coordination among stakeholders, limited resources and funding, and data quality issues.

Some of the best practices for the management of geographical data include data collection and compilation standards, data quality control and assurance, and metadata management.

Some of the emerging trends in the field of geographical data management include big data and geospatial analytics, cloud computing and geospatial data storage, and artificial intelligence and machine learning for geospatial data analysis.