Here is an excellent directory of India’s climate tech startups by decarbonization domain, done by CLIMAFIX division of EAI

Source – all categories

Renewable EnergyUtility Scale Solar | Distributed Solar | Solar Thermal | Wind Power | Biomass heating and power | Biofuels | Hydro Power | Geothermal Energy

Energy EfficiencyEnergy Efficient Buildings | Industrial Waste Heat RecoveryLow Carbon Thermal PowerEnergy Efficient Industrial Equipment | Smart Grids | Heat PumpsDigital for Decarbonization

Energy StorageBattery Storage | Thermal & Mechanical Storage | Green Hydrogen

Agriculture & FoodSustainable Forestry | Regenerative Agriculture | Smart Farming | Low Carbon Food | Agro Waste Management

MaterialsBio-based Materials | Advanced Materials | Product Use Efficiency | Industrial Resource Efficiency

Waste ManagementReducing Food Waste | Solid Waste Management

WaterWater Use Efficiency

Decarbonizing IndustriesLow Carbon Metals | Low Carbon Chemicals & Fertilizers | Low Carbon Construction Materials | Low Carbon Textiles & Fashion | Decarbonizing Oil & Gas SectorCorporate Carbon Management

Low Carbon MobilityElectric Mobility | Low Carbon Trucking | Low Carbon Marine Transport | Low Carbon Aviation | Low Carbon ICE Vehicles | Mass Transit

GHG ManagementCO2 Capture & Storage | C2V – CO2 to ValueReducing Emissions from LivestockReducing Non-CO2 Industrial & Agricultural EmissionsManaging Large Carbon Sinks

OthersLow Carbon Lifestyles | Multi-stakeholder CollaborationMoonshots