Tempsens Instruments (India) IPO opens August 20: Price band ₹285 to ₹300, issue size ₹650 crore and key details

Summary:

Tempsens Instruments IPO opens on August 20, 2026, at a price band of ₹285 to ₹300 per share. The ₹650 crore issue combines a ₹95 crore fresh issue with a ₹555 crore offer for sale, closes August 24, and lists tentatively August 28 on BSE and NSE.

Introduction

Tempsens Instruments is a Vadodara-based thermal engineering and specialised cable manufacturer, with a business built around temperature-sensing solutions, electrical heating solutions, and specialised cables. The subscription runs for three days, closing on August 24, with the listing tentatively scheduled for August 28 on both BSE and NSE. This IPO stands out for how heavily it leans on the offer for sale, and that structure, along with the company's financials and stated valuation, is worth understanding properly before deciding whether to apply.

Tempsens Instruments IPO: Key highlights

Tempsens Instruments IPO dates and timeline

The Tempsens Instruments IPO date spans three trading sessions, with allotment, refunds, and listing following on a fairly standard mainboard schedule.

Bidding runs across a long weekend, with the close falling on a Monday rather than a Friday. Investors who miss the window on August 24 will need to wait for the next available issue, since late applications are not accepted once bidding closes.

Tempsens Instruments IPO price band, lot size and minimum investment

At a face value of ₹4 per share, the Tempsens Instruments IPO price band of ₹285 to ₹300 works out to a minimum retail investment of ₹15,000 for a single lot of 50 shares. Retail investors can bid at the cut-off price, while HNI categories are expected to bid at a specific price point within the band.

QIB investors get not more than 50 percent of the net offer, retail investors get not less than 35 percent, and non-institutional investors get not less than 15 percent.

Tempsens Instruments IPO issue size and offer structure

Of the ₹650 crore issue, only ₹95 crore is fresh capital heading into the company. The remaining ₹555 crore, close to 85 percent of the total, is an offer for sale by existing shareholders. That is a heavily OFS weighted structure, and it means the bulk of what investors pay in this IPO goes to the people selling shares, not toward funding the business itself.

The offer for sale is spread across five sellers. Amit Talesara accounts for the largest portion at close to ₹144 crore, followed closely by Nirmal Kumar Pande at a similar amount. Chandra Prakash Talesara and Ankit Talesara each contribute around ₹114 crore, and Puneet Talesara sells a smaller stake worth close to ₹39 crore. The promoter and promoter group holding falls from 80.51 percent before the issue to 65.67 percent after, a meaningful step down, though the company remains firmly promoter-controlled post-listing.

Objectives of the IPO

Since the fresh issue portion is a small fraction of the total raise, the amount actually available to the company for its own use is limited. Of the roughly ₹73 crore in fresh proceeds after estimated expenses, about ₹18 crore is earmarked for capital expenditure toward electrical heating and specialised cable solutions, and ₹55 crore is set aside to prepay or repay existing borrowings. A small residual amount goes toward general corporate purposes. This is a modest capex and deleveraging plan rather than a large expansion programme, which fits with an issue where most of the money raised is going to selling shareholders rather than the business.

About Tempsens Instruments

Incorporated in 1990, Tempsens Instruments has spent more than three decades in thermal engineering and specialised cable manufacturing, designing and producing customised temperature sensing solutions, electrical heating solutions, and specialised cables. The company states it is the largest manufacturer of contact and non-contact temperature sensors in India by revenue, with a market share of around 10.5 percent in the temperature sensor segment.

Its customer base is broad rather than concentrated, having served more than a thousand unique customers across the three years leading up to March 2026, and the company describes a meaningful share of its revenue as coming from products it was first to introduce in the Indian market. That combination, a long operating history in a fairly specialised industrial niche and a wide customer spread, points to a business less exposed to any single client relationship than some of its manufacturing peers. The company is led by three promoters: Virendra Prakash Rathi, Vinay Rathi, and Pratap Singh Talesara.

Financial performance

Tempsens Instruments has posted steady growth across its top and bottom lines over the past three financial years, without the sharp swings seen in some other recent listings.

Revenue grew 19 percent in FY26, while profit after tax grew a slightly slower 14 percent, suggesting margins have held roughly steady rather than expanding. Net worth jumped sharply between FY24 and FY25, likely reflecting a capital infusion or reserve build-up ahead of the listing, and has continued growing since. Borrowings have also risen over the same period, more than doubling from FY24 levels, which is worth keeping in view alongside the company's plan to use part of the fresh issue toward debt repayment.

Strengths of Tempsens Instruments

• Over three decades of operating history in thermal engineering and specialised cable manufacturing
• Stated leadership position in India's temperature sensor segment by revenue
• A broad customer base of more than a thousand unique clients over the past three years, reducing dependence on any single buyer
• Consistent growth in both revenue and profit across the years under review
• A specialised, technically differentiated product range that is not easily replicated
• Improving net worth ahead of the listing, strengthening the balance sheet

Risks investors should consider

• The offer for sale accounts for close to 85 percent of the issue, meaning most of what investors pay goes to selling shareholders rather than the company
• Post-issue price to earnings works out to over 35 times, a level that leaves little room for a slowdown to be well received
• Borrowings have more than doubled since FY24, even as the company plans to use part of the fresh proceeds to pay some of these down
• Profit growth has lagged revenue growth in the most recent year, a sign that margins may be under some pressure
• A business built around industrial and thermal engineering clients is tied to broader capex cycles in the sectors it serves
• Promoter holding drops by close to 15 percentage points post-issue

Should you track the Tempsens Instruments IPO?

There is a fair amount of substance here. A genuinely specialised, decades-old manufacturing business with a stated leadership position in its core segment and a wide, non-concentrated customer base are not small things. Growth in revenue and profit has also been steady rather than erratic, which tends to be reassuring for a first-time listed company.

The two things worth sitting with before applying are the valuation and the offer structure. At a post-issue P/E above 35 times, the issue is priced well above where many industrial manufacturers trade, and the issue has already been flagged as fully priced on recent financials. Combine that with an offer for sale making up the large majority of the raise, and this looks like an issue where existing shareholders are the primary beneficiaries of the listing, at least in the near term. Investors drawn to the business itself may still find it worth tracking for the medium to long term, but this is not a case where the price band leaves an obvious discount.

Latest Tempsens Instruments IPO subscription updates

As of publishing, the Tempsens Instruments IPO is yet to open for subscription, with bidding scheduled to begin on August 20, 2026. Once the issue goes live, subscription figures across the qualified institutional buyer, non-institutional investor, and retail categories will start updating through the four-day bidding window, with institutional demand typically becoming clearer closer to the final day. This section will be updated with day-wise subscription numbers as they become available, ahead of the allotment date on August 25.

Conclusion

Tempsens Instruments brings a specialised, long-established thermal engineering and cable manufacturing business to market at ₹285 to ₹300, with bidding running August 20 to 24 and listing set for August 28. Steady growth and a leadership position in temperature sensing are the clear positives. The valuation leaves little margin for error, and the heavily offer-for-sale weighted structure means investors should be clear that most proceeds are going to existing shareholders rather than the company.