Here is an excellent directory of India’s climate tech startups by decarbonization domain, done by CLIMAFIX division of EAI
Source – all categories
Renewable Energy – Utility Scale Solar | Distributed Solar | Solar Thermal | Wind Power | Biomass heating and power | Biofuels | Hydro Power | Geothermal Energy
Energy Efficiency – Energy Efficient Buildings | Industrial Waste Heat Recovery | Low Carbon Thermal Power | Energy Efficient Industrial Equipment | Smart Grids | Heat Pumps | Digital for Decarbonization
Energy Storage – Battery Storage | Thermal & Mechanical Storage | Green Hydrogen
Agriculture & Food – Sustainable Forestry | Regenerative Agriculture | Smart Farming | Low Carbon Food | Agro Waste Management
Our specialty focus areas include 
Materials – Bio-based Materials | Advanced Materials | Product Use Efficiency | Industrial Resource Efficiency
Waste Management – Reducing Food Waste | Solid Waste Management
Water – Water Use Efficiency
Decarbonizing Industries – Low Carbon Metals | Low Carbon Chemicals & Fertilizers | Low Carbon Construction Materials | Low Carbon Textiles & Fashion | Decarbonizing Oil & Gas Sector | Corporate Carbon Management
Low Carbon Mobility – Electric Mobility | Low Carbon Trucking | Low Carbon Marine Transport | Low Carbon Aviation | Low Carbon ICE Vehicles | Mass Transit
GHG Management – CO2 Capture & Storage | C2V – CO2 to Value | Reducing Emissions from Livestock | Reducing Non-CO2 Industrial & Agricultural Emissions | Managing Large Carbon Sinks
Others – Low Carbon Lifestyles | Multi-stakeholder Collaboration | Moonshots
