Adani-Backed Vishaka Renewables Files DRHP: A Monopoly-Like Position in Solar Components

India's solar industry is growing rapidly. But when we think about solar, we usually think about the companies making the finished solar panels. There is another part of the industry that gets much less attention: the companies making the components that go into those panels.

One such company is Vishaka Renewables Limited, which has filed its DRHP with SEBI for an IPO. The company is jointly promoted by the Vishaka Group and the Adani Group, with Adani Properties Private Limited holding a 39.14% stake.

The proposed IPO will include a fresh issue of up to ₹1,250 crore and an Offer for Sale (OFS) of up to 1.81 crore equity shares. But the real story is what Vishaka makes and why it matters.

What makes this company different from a typical solar manufacturer?

Vishaka makes the parts behind the solar panel. When we hear "solar company", we usually imagine a factory making finished solar panels. Vishaka operates one step behind that.

A solar panel has six main building blocks. Vishaka manufactures four of these six key non-cell components:

• Solar glass - the protective glass on top
• Aluminium frames - the outer structure of the panel
• EVA/EPE encapsulants - protective polymer sheets that seal the solar cells
• Backsheets - the protective layer at the back

Together, these four components account for around 40%–45% of a solar panel's manufacturing cost.

But Vishaka's real differentiator is not simply that it makes four products. It is the scale and breadth of its position across these products.

According to the CRISIL report, Vishaka is the only company in India manufacturing all four of these key non-cell components under one roof. It is also India's largest non-cell solar component manufacturer by combined production capacity.

And it is not a small player in individual products either:

• #1 in aluminium frames: Vishaka has an operational capacity of 14,508.75 TPA, equivalent to 3.37 GW, as of March 31, 2026.
• #2 in solar glass: It has 660 TPD, or 4.40 GW, of melting capacity and operates India's largest single solar-glass furnace.
• #2 in EVA/EPE encapsulants: It has a capacity of 23.20 million linear metres, equivalent to 6.03 GW.
• Top 10 in backsheets: It has a capacity of 8.05 million linear metres, equivalent to 3.80 GW.

The company is also expanding. Its aluminium-frame expansion is expected to take combined capacity to 11.67 GW, while solar-glass capacity is planned to increase from 660 TPD to 1,920 TPD, or 12.80 GW.

So, instead of depending on just one product, Vishaka has built a business spanning several important parts of the solar-panel supply chain.

Why could this matter?

Think of a restaurant. Many restaurants may compete for customers, but they all need basic ingredients to make their food. Vishaka plays a similar role for solar manufacturers - it supplies important components they need to make solar panels.

That is the basic “pick-and-shovel” idea behind Vishaka: it can benefit from the growth of solar manufacturing without having to compete directly in the finished-panel market.

It is not trying to predict which solar-panel manufacturer will dominate. It supplies components that solar-panel manufacturers need.

And there is another opportunity here: imports.

India still depends heavily on imports for these non-cell components - around 70% for solar glass, more than 65% for aluminium frames, more than 70% for encapsulants and around 75% for backsheets, according to the DRHP.

Government measures such as ALMM and DCR are also intended to encourage domestic sourcing. That gives domestic manufacturers such as Vishaka an opportunity to replace a part of the imported supply.

But being in a favourable position is one thing. The next question is whether Vishaka has enough demand and customer diversity to support its growth.

Long-term contracts provide some demand visibility

Building large manufacturing plants requires significant investment. The obvious risk is simple: what if a company builds capacity but customers do not buy enough?

Vishaka has tried to reduce this risk through long-term take-or-pay agreements with Adani's Mundra Solar business for its solar-glass facilities. The agreements run for 15 years and 17 years, with Adani required to purchase at least 70% of Vishaka's total solar-glass production capacity.

In simple words, imagine building a factory and having a customer commit to paying for at least 70% of its capacity for many years. If the customer does not take the agreed quantity, it still has a payment obligation for the shortfall, subject to the contract terms.

This gives Vishaka some visibility for its solar-glass business. But it also raises an obvious concern: How dependent is Vishaka on Adani?

Vishaka is trying to reduce its Adani dependence

Customer concentration can be risky. If a company depends heavily on one customer and that customer reduces its orders, the supplier can suffer.

This was a significant issue for Vishaka in FY24. According to the DRHP, Adani portfolio entities accounted for 87.83% of revenue. But that dependence has reduced.

By FY26, Adani's share of revenue had fallen to 37.72%, while Vishaka's total revenue increased from ₹1,003.58 crore in FY24 to ₹1,893.38 crore in FY26.

The company also expanded its customer base to 99 third-party solar manufacturers, including Waaree Energies, TP Solar, Premier Energies, SAEL Solar and Saatvik Green Energy.

That is an important shift. Vishaka is no longer relying on just one large customer for most of its business. It is trying to become a supplier to the wider solar-manufacturing ecosystem.

The real test will be whether it can continue growing this non-Adani business.

Where will the IPO money go?

The next important part of the IPO is what Vishaka plans to do with the money.

Out of the ₹1,250 crore fresh issue, ₹900 crore will be used to repay outstanding bank borrowings. That means roughly 72% of the fresh issue is earmarked for debt repayment.

This matters because Vishaka carries significant debt. Its borrowings stood at ₹2,311.92 crore in FY26, while borrowings were around ₹2,700.57 crore as of June 2026. The company also paid ₹123.17 crore in interest during FY26.

If the proposed debt repayment reduces its borrowing cost, more of its operating profit could ultimately flow through to net profit.

Think of it like paying off an expensive loan. Once the interest payment falls, more of your income stays with you.

What is the actual Vishaka investment story?

Put everything together and the story becomes fairly simple.

Vishaka has built a four-component position in the solar supply chain, making it India's only company manufacturing these four key non-cell components under one roof and the largest combined player by production capacity.

It also holds leading positions in individual components, while India's high dependence on imports creates an opportunity for domestic suppliers. Its long-term take-or-pay contracts provide some demand visibility for its solar-glass capacity.

At the same time, its growing third-party customer base could reduce its dependence on Adani. And the IPO gives the company an opportunity to reduce debt.

So investors should ultimately watch four things:

• Can Vishaka maintain its leading position across multiple solar components?
• Can it continue expanding its non-Adani customer base?
• Can it execute its capacity expansion while maintaining profitability?
• What valuation will investors be asked to pay?

That last question is crucial. A strong business does not automatically make a good investment at any price. Investors can use a broader IPO analysis framework once the IPO's pricing is available.

For now, Vishaka Renewables presents an interesting DRHP-stage story: a company positioned across four important parts of the solar supply chain, with leading positions in individual components, a large domestic import-substitution opportunity, growing customer diversity and a plan to use IPO capital to reduce debt.

Whether that becomes an attractive IPO opportunity will ultimately depend on the valuation at which investors get access to this story.

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