In India, farmers lose nearly ₹1.5 lakh crore annually due to post-harvest spoilage, impacting incomes and food supply. For Varun Raheja, an engineer from Indore, this staggering problem became the inspiration for a startup that combines solar energy and IoT technology to revolutionize food drying and preservation.
The Beginning of the Startup
Varun’s journey began during his mechanical engineering studies at Medicaps University, where he experimented with drying fruits and vegetables on his terrace using simple solar setups. Early trials revealed that a controlled environment could preserve color, nutrition, and flavor while minimizing waste. Motivated to scale the idea, Varun founded Raheja Solar Food Processing Pvt. Ltd., bringing his prototype into a commercial-ready solution.
Founder Background and Inspiration
Varun Raheja’s passion for sustainable technology and agricultural innovation drove the startup. He realized that most Indian farmers lacked access to cost-effective solutions for drying produce, leading to financial losses and limited market opportunities. By merging solar energy, airflow control, and IoT monitoring, Varun created a system that could track temperature, humidity, and drying progress remotely, empowering farmers with real-time insights.
The Problem the Startup Is Solving
India’s post-harvest losses are among the highest globally, particularly for fruits, vegetables, and flowers. Without efficient drying or preservation methods, farmers face spoilage, reduced earnings, and market inefficiencies. Raheja Solar addresses this by offering scalable solar dryers that reduce losses, enhance shelf life, and increase profitability.
The Product or Solution
Raheja Solar manufactures dryers in various capacities, from small units for individual farmers to large industrial systems. Integrated IoT features allow users to monitor and control drying parameters via a smartphone, ensuring consistent quality and reduced energy dependence. Additionally, the startup runs a consumer brand, Bare Fruit, selling dried snacks from surplus produce.
Growth and Milestones
The startup’s impact is measurable: over 8,000 solar dryers installed across 26 states, connecting more than 1 lakh farmers. Revenue grew from ₹7.07 crore in FY24 to ₹12–14 crore in FY25. A Shark Tank India appearance further boosted visibility, where Varun secured ₹1.75 crore for 7 % equity, validating investor confidence.
Future Plans and Vision
Raheja Solar plans to expand globally, targeting Southeast Asia, Africa, and South America, aiming to empower millions of farmers while reducing global food waste. The startup is also refining IoT analytics to optimize drying efficiency and crop-specific workflows.
Why This Startup Matters Today
Raheja Solar is more than a business; it’s a sustainable solution to systemic agricultural problems, combining clean energy, technology, and entrepreneurship. By increasing farmers’ incomes and reducing waste, the startup strengthens rural economies and promotes a greener future.
FAQs
What does Raheja Solar do?
It provides IoT-enabled solar dryers to reduce post-harvest losses for farmers.
Who founded Raheja Solar?
Varun Raheja, an engineer from Indore.
How does the solar dryer work?
It uses solar energy and IoT-controlled airflow and temperature to dry produce efficiently.
Who benefits from this technology?
Farmers, small businesses, and food processing units benefit from reduced spoilage and higher profits.
What was the Shark Tank deal?
Varun secured ₹1.75 crore for 7 % equity to scale the business and expand farmer networks.
