How to Apply for Government Subsidy on Rainwater Harvesting System (2025 Guide)
India is experiencing increasing water shortages in both the rural and urban regions. Rainfall and roof runoff can be effectively reclaimed and used through a Rainwater Harvesting System, reducing dependence on groundwater. To encourage the adoption of this technology of the system, the Government of India and various states offer incentives, subsidies, as well as technical assistance.
This guide for 2025 explains what you need to do in order to qualify for state-specific government subsidies, state-wise updates, the importance of Rainwater Filter Systems, and practical guidelines for putting in the home water filtration System.
What Is a Rainwater Harvesting System?
A Rainwater Harvesting System collects and stores rainwater for domestic, agricultural, or industrial use. Core components include:
- Rooftop catchment or open-field collection
- Gutters and downpipes
- First-flush system
- Rainwater Filter
- Storage tanks / recharge pits
- Optional connection to a Home Water Filtration System
Cities like Bangalore and regions like Chhata, Odisha are actively promoting these systems through government-backed subsidies, making clean water accessible and sustainable.
Government Subsidies & Schemes in 2025
Both central and state-level initiatives now provide financial support for homes, institutions, and farms that implement Rainwater Harvesting Systems.
| Sector | Subsidy | Authority / Scheme |
| Residential Homes | 50–60% (up to ₹25,000) | Urban Local Bodies, Jal Shakti Mission |
| Schools & Institutions | 50–70% | CSR, Urban Development Schemes |
| Farmland Rainwater Harvesting Systems | 60–90% | Agriculture Dept., Rural Development |
| Industrial Projects | 30–40% | State Pollution Control Boards |
For official government details:
- Ministry of Jal Shakti (Catch the Rain Campaign)
- BWSSB Bangalore Subsidy Guidelines
Step-by-Step: How to Apply for Subsidy
- Check Your State’s Portal
Look for your state-specific program, e.g., Chhata Odisha online apply, or BWSSB Bangalore rainwater scheme. - Select a Certified Rainwater Harvesting Company
Choose a trusted company like Rainy Filters Bangalore with government-recognized products. - Submit Application & Documents
Required documents may include:
- Proof of property ownership
- Building layout and technical drawings
- Bill of materials including Rainwater Filter and installation cost
- Photos of the site and proposed system
- Proof of property ownership
- Inspection & Approval
Municipal engineers or authorities verify feasibility before approval. - Installation & Verification
Install your Rainwater Filter System (e.g., Rainy Filter FL 500) and submit proof to receive the subsidy.
State-Wise Highlights (2025 Update)
Karnataka / Bangalore
Government incentives and schemes exist for new buildings. BWSSB offers rebates on water bills and property taxes for certified Rainwater Harvesting Systems.
Odisha (Chhata Region)
The Chhata Odisha initiative allows online applications for rooftop and community rainwater harvesting. Subsidies range up to 45%, and technical guidance is provided.
Tamil Nadu
Urban and rural areas receive continued support.Searches on local websites for “Rainwater Harvesting Meaning in Tamil” indicate a high degree of engagement from the public.
Maharashtra & Delhi NCR
States are currently promoting commercial, residential as well as institutional rainwater collection. They are offering technical assistance, grants as well as tax advantages.
Benefits of Installing a Rainwater Harvesting System
- Cost Savings: Reduces monthly water bills
- Eco-Friendly: Prevents runoff, flooding, and soil erosion
- Safe Water: Modern Rainwater Filter Systems provide clean, debris-free water
- Property Value: Sustainability improves resale potential
- Farmland Support: Farmland rainwater harvesting systems ensure steady irrigation supply
Choosing the Right Rainwater Filter System
When selecting a system:
- Filter Type: Self-cleaning Rainy Filters reduce maintenance.
- Capacity: Choose based on rooftop/farmland size.
- Price: Compare Rainwater Filter Prices online.
- Maintenance: Long-lasting, government-approved filters like Rainy Filter FL 80, FL 150, FL 500 are recommended.
FAQs
Q1. Are there government incentives in Karnataka/Bangalore for rainwater harvesting?
Yes. BWSSB provides rebates and subsidies for certified systems.
Q2. How to apply for Chhata Odisha?
Apply online via Chhata Odisha portal and submit documents and invoice for your Rainwater Harvesting Filter System.
Q3. Best rainwater filter for home use?
Rainy Filters FL series (80, 150, 500) are certified, self-cleaning, and efficient.
Q4. Average rainwater filter price in 2025?
Ranges between ₹4,000–₹18,000 depending on size and model.
Conclusion
Subsidies and incentives from the government will make 2025 the perfect year to set up the Rainwater Harvesting System. In Bangalore, through Chhata Odisha, programs support the farmers and homes as well as the farmland.Utilizing certified products such as Rainy Filters guarantees sustainable, compliance and secure storage of water. Don’t delay- make sure you conserve the water supply, replenish groundwater and help India’s green future.
