What are the leading geothermal power generation operator companies in India that are involved in geothermal energy exploration, drilling, and electricity generation projects across geothermal resource-rich regions? Which companies have the strongest presence in India’s emerging geothermal energy sector through pilot projects, geothermal research initiatives, and renewable energy infrastructure development? How are these geothermal power operators contributing to clean energy generation, carbon emission reduction, and the diversification of India’s renewable energy portfolio? Which companies and organizations are considered industry leaders based on geothermal project development, technological capabilities, exploration expertise, and long-term renewable energy initiatives in India?