In the fast evolving world of information age, the value of open data is being recognized around the world. The information and communication technologies are making it easier to collect and store data. The consequent use of this data is leading to smartness in the respective sectors. Since power infrastructure is critical for national security, the availability and access to data is one of the hurdle for researchers in power sector. However, due to paradigm shift in Government's view of open data, paired with advancements in technology proactive dissemination of data on various sectors in India, including power sector, has become a reality. Thus this two part paper attempts to compile a bibliography of all such data sources, to the extent possible, pertaining to power sector of India. Part 1 covers the electrical systems operations and markets. Part 2 covers the regulations, standards and smart grids. It is believed that this will help all the stakeholders including researchers in knowing what kind of data is available and possibly give them new ideas in applying this data in their respective research. This paper organizes the data sources into various domains and also discusses recent developments in the open data movement across the world and how Indian power sector can be benefited from the same. © 2016 IEEE.