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Updated: 21 August 2026 | IPO is open from 20–24 August. GMP is unofficial and can change sharply before listing.
Tempsens Instruments IPO has opened to strong investor demand, with the issue subscribed 5.95 times on Day 1, according to reported exchange data. The non-institutional investor portion was particularly strong at 12.51x, while retail subscription stood at 6.48x by the Day 1 evening update.
The grey market is also signalling a sizeable premium. Reports put the GMP around ₹210–₹232, although grey-market figures vary by tracker and can change quickly. At the ₹300 upper price band, that range would imply an indicative price of roughly ₹510–₹532.
That sounds attractive. But there is an important second question: does the business and valuation justify the IPO beyond the GMP?
Tempsens Instruments IPO: Key Facts
| Particular | Details |
|---|---|
| Company | Tempsens Instruments (India) Ltd |
| IPO dates | 20–24 August 2026 |
| Price band | ₹285–₹300 |
| Lot size | 50 shares |
| Minimum investment | ₹15,000 |
| Issue size | ₹650 crore |
| Fresh issue | ₹95 crore |
| Offer for Sale | ₹555 crore |
| Allotment | 25 August 2026 (expected) |
| Listing | 27/28 August 2026, depending on final exchange/issue schedule |
| Registrar | KFin Technologies |
| Day 1 subscription | 5.95x |
| GMP | Around ₹210–₹232 reported by trackers |
The IPO is a combination of a ₹95 crore fresh issue and a much larger ₹555 crore offer for sale (OFS). The distinction matters: proceeds from the fresh issue go to the company, while OFS proceeds go to the selling shareholders.
Important: Some market sources currently show different tentative listing dates. Investors should rely on the final exchange/registrar schedule rather than treating an indicative date as confirmed.
Day 1 Subscription: How Strong Was Demand?
Tempsens Instruments attracted substantial demand on the first day itself.
By the Day 1 evening update, the IPO was subscribed 5.95 times overall. NII demand led the main investor categories at 12.51x, while the retail portion was subscribed 6.48x. QIB participation was only 0.05x at that point.
Day 1 subscription snapshot
| Category | Day 1 subscription |
|---|---|
| QIB | 0.05x |
| NII | 12.51x |
| Retail | 6.48x |
| Employee | 9.43x |
| Overall | 5.95x |
The relatively low QIB participation on Day 1 should not automatically be interpreted as a negative signal. Institutional bidding can increase substantially toward the final day of an IPO.
The more useful takeaway is that NII and retail demand was already strong during the first day.
The IPO remains open until 24 August, so these numbers can change materially before the issue closes.
Tempsens Instruments IPO GMP: What Is the Market Signalling?
The GMP is attracting much of the attention around this IPO.
Recent reports have put the grey-market premium around ₹210–₹232, while other trackers have reported different levels at different times. That variation itself is a reminder that GMP is not an official exchange price.
Using the ₹300 upper price band:
| GMP | Indicative listing price | Approx. premium |
|---|---|---|
| ₹210 | ₹510 | 70% |
| ₹220 | ₹520 | 73.3% |
| ₹232 | ₹532 | 77.3% |
For example, a ₹220 GMP against a ₹300 issue price implies:
₹300 + ₹220 = ₹520 indicative price
and:
₹220 ÷ ₹300 × 100 = 73.3%
So the reported GMP range broadly supports the 70–80%+ premium headline.
But don’t confuse GMP with a guaranteed return
GMP is an unofficial grey-market indicator. It is not the same thing as the actual NSE or BSE listing price.
GMP can fall sharply before listing because of:
- changes in broader market sentiment;
- changes in IPO subscription demand;
- institutional participation;
- profit-taking;
- changes in grey-market activity; and
- expectations around valuation.
So, if you are considering the IPO purely because the GMP looks high, remember this:
GMP is a sentiment indicator, not a guaranteed listing price.
What Does Tempsens Instruments Do?
Tempsens Instruments is a thermal engineering and specialised cable manufacturer based in India.
Its business covers three broad areas:
- temperature-sensing solutions;
- electrical heating solutions; and
- specialised cables.
Its products are used in industrial applications where accurate temperature measurement, heating or specialised cabling is required.
The company’s portfolio includes products such as thermocouples, resistance temperature detectors, infrared pyrometers, thermal imaging equipment, electrical heaters and specialised cables.
According to information cited from the F&S report, Tempsens was the largest manufacturer of contact and non-contact temperature sensors in India by revenue as of March 31, 2026, with an estimated 10.5% share of the temperature-sensor segment.
That gives the IPO a somewhat different character from consumer-facing technology IPOs. Tempsens is essentially an industrial manufacturing and engineering business.
A Simple Example of Its Business
Think about a steel plant, refinery or industrial furnace.
The operator needs to know how hot a particular process is. It may also need specialised heating equipment or cables that can operate under demanding industrial conditions.
Tempsens supplies products designed for these applications.
That means its growth is linked partly to industrial investment, manufacturing activity and demand from sectors such as metals, petrochemicals, power and other process industries.
The company also has an international presence, with exports forming a meaningful part of its business.
Tempsens Instruments IPO Financial Snapshot
The latest financial data available from IPO sources shows continued growth:
| Metric | FY26 | FY25 |
|---|---|---|
| Revenue | ~₹456 crore | ~₹382 crore |
| Profit after tax | ~₹71 crore | ~₹63 crore |
| EBITDA | ~₹113 crore | ~₹97 crore |
The figures indicate that revenue increased substantially between FY25 and FY26, while profit also improved.
But revenue growth alone does not settle the investment question.
Investors also need to consider margins, working-capital requirements, debt, valuation and how much future growth is already reflected in the IPO price.
Where Will the IPO Money Go?
The ₹650 crore issue consists predominantly of an OFS.
Fresh issue — ₹95 crore
The fresh issue is intended for purposes including:
- capital expenditure for electrical heating solutions;
- capital expenditure for specialised cable solutions;
- repayment or prepayment of certain borrowings; and
- general corporate purposes.
The company will receive the proceeds from this portion.
Offer for Sale — ₹555 crore
The much larger component is the OFS.
This means existing shareholders are selling shares rather than the entire ₹555 crore flowing into the company’s balance sheet.
That distinction is important when assessing what the IPO actually adds to the company’s financial resources.
Why the Tempsens IPO Looks Attractive
There are several positives investors can point to.
1. Niche industrial business
Temperature sensing and specialised thermal products require technical expertise and customer relationships.
That can create higher barriers to entry than a straightforward commodity business.
2. Established market position
The company has a significant position in India’s temperature-sensing market, according to the industry report cited in the IPO materials.
3. International exposure
Tempsens serves customers beyond India and has developed an export business across multiple markets.
That provides geographical diversification, although it also exposes the company to currency and overseas-market risks.
4. Strong early subscription
A 5.95x overall subscription on Day 1 indicates strong initial demand, particularly from NIIs and retail investors.
5. Strong GMP
The reported GMP is another positive short-term sentiment indicator.
However, this should be treated separately from the company’s fundamental performance.
What Are the Risks?
This is where the IPO deserves a closer look.
Valuation risk
A strong business can still be an expensive IPO.
The ₹300 upper band values the company at around ₹2,515 crore based on reported pre-issue/post-issue calculations.
Investors should therefore compare the IPO valuation with the company’s earnings, growth rate and comparable listed businesses rather than looking only at the GMP.
Large OFS component
Of the ₹650 crore issue, approximately ₹555 crore is an OFS.
That means most of the issue proceeds do not represent fresh capital going into the company.
Industrial-cycle risk
Tempsens serves industrial customers. If capital expenditure in sectors such as metals, petrochemicals or other industrial industries slows, order flows could be affected.
Customer and sector concentration
The company has meaningful exposure to industrial sectors, and reports indicate that metals and petrochemicals account for a substantial portion of revenue.
That creates concentration risk if spending in those industries weakens.
Working-capital risk
Brokerage and research commentary has highlighted the company’s working-capital cycle as an area investors should monitor. One recent review cited a roughly 210-day working-capital cycle.
For a manufacturing company, strong accounting profits are more useful when they translate into healthy cash generation.
GMP risk
This is perhaps the simplest risk to understand.
A GMP of ₹210–₹232 today does not mean the stock must list ₹210–₹232 above the IPO price.
If the grey-market premium falls before listing, the implied listing price falls with it.
Should You Apply for the Tempsens Instruments IPO?
There isn’t one correct answer for every investor.
The better question is why you are applying.
For listing-gain seekers
The IPO currently has two strong short-term signals:
- strong Day 1 subscription; and
- a high reported GMP.
That makes it interesting for investors who understand that listing gains are uncertain and can tolerate substantial volatility.
But applying purely because the GMP is high is risky.
For long-term investors
The long-term case depends much more on:
- revenue growth;
- profitability;
- industrial demand;
- export growth;
- cash generation;
- valuation; and
- the company’s ability to maintain its competitive position.
The company’s niche market position and growth are positives, but valuation and working-capital efficiency deserve equal attention.
For conservative investors
A conservative investor may prefer not to chase a high GMP.
Waiting for the stock to list and then assessing its market valuation, financial performance and trading behaviour can be a more cautious approach, although it also means potentially missing any initial listing gain.
A Simple Decision Checklist
Before applying, ask yourself:
- Am I applying for a listing gain or for the long term?
- Would I still want the company if the GMP disappeared tomorrow?
- Is the IPO valuation reasonable compared with its earnings and peers?
- Am I comfortable with the large OFS component?
- Can I tolerate a sharp fall after listing?
- Have I looked at cash flows and working capital, not just revenue and profit?
- Does an industrial manufacturing business fit my portfolio risk?
If the answer to several of these questions is no, the GMP alone probably isn’t a sufficient reason to apply.
Important IPO Dates
The issue is open from 20 August to 24 August 2026. The tentative allotment date is 25 August. Some market platforms currently show 27 August as the listing date, while the structure supplied for this article had 28 August, so the final exchange/registrar schedule should be checked before publication.
| Event | Date |
|---|---|
| IPO opens | 20 August 2026 |
| IPO closes | 24 August 2026 |
| Allotment | 25 August 2026 (expected) |
| Refund/unblocking | 26 August 2026 (expected) |
| Share credit | 26 August 2026 (expected) |
| Listing | Check final exchange/registrar schedule |
The minimum application is 50 shares, meaning an investor applying at the ₹300 upper band needs ₹15,000 before applicable charges. (Samco)
How to Apply for the Tempsens Instruments IPO
If you decide to apply:
- Open your broker’s IPO section.
- Select Tempsens Instruments IPO.
- Enter the number of lots.
- Choose the bid price or apply at the cut-off where applicable.
- Submit the UPI application.
- Approve the UPI mandate within the required deadline.
- Save the application details.
The application amount is generally blocked through the UPI mandate rather than immediately transferred to the company.
What Happens After You Apply?
After the IPO closes:
- bids are finalised;
- the basis of allotment is determined;
- successful applicants receive shares in their demat accounts;
- funds for unsuccessful applicants are unblocked/refunded;
- the shares begin trading after listing.
For allotment information, investors should use the registrar and exchange channels once the basis of allotment is finalised.
Tempsens Instruments IPO: Myths vs Facts
| Claim | Reality |
|---|---|
| GMP of 70–80% means guaranteed listing gains | False. GMP is unofficial and can change. |
| Day 1 subscription of 5.95x means everyone gets shares | False. Allotment depends on category-wise demand and allocation. |
| Most IPO money goes to Tempsens | No. A large portion is an OFS. |
| Strong GMP proves the IPO is fairly valued | No. GMP reflects short-term grey-market sentiment. |
| QIB demand was already very strong on Day 1 | No. QIB subscription was only 0.05x in the reported Day 1 data. |
| The business is only about temperature sensors | No. It also operates in electrical heating solutions and specialised cables. |
FAQ: Tempsens Instruments IPO
What is the Tempsens Instruments IPO price band?
The price band is ₹285–₹300 per share.
What is the minimum investment in the Tempsens IPO?
The lot size is 50 shares, so the minimum investment at the upper band is ₹15,000.
What is the current Tempsens Instruments IPO GMP?
Recent reports have placed the GMP in the broad ₹210–₹232 range, although GMP figures vary between trackers and can change rapidly.
What listing price does a ₹210 GMP imply?
At the ₹300 upper price band, a ₹210 GMP implies an indicative price of about ₹510, or a 70% premium.
What does a ₹232 GMP imply?
A ₹232 GMP against the ₹300 upper band implies an indicative listing price of about ₹532, or roughly a 77.3% premium.
How much was the Tempsens IPO subscribed on Day 1?
The IPO was subscribed 5.95 times overall on Day 1 in the reported exchange data. NII demand was 12.51x and retail demand was 6.48x.
When does the Tempsens Instruments IPO close?
The IPO closes on 24 August 2026.
When is Tempsens Instruments IPO allotment?
The allotment is expected on 25 August 2026, subject to the final issue schedule.
Is Tempsens Instruments IPO a good IPO?
The IPO has positive signals including strong early subscription, a niche industrial business and reported profitability. However, investors should also consider valuation, the large OFS component, working-capital requirements and industrial-sector risks before deciding.
Should I apply for the Tempsens Instruments IPO because of the GMP?
GMP alone should not determine an IPO application. It is unofficial and can change before listing. The company’s valuation, financials, business outlook and your investment horizon are more important for a long-term decision.
Final Verdict
The Tempsens Instruments IPO has made a strong opening impression.
Day 1 subscription reached 5.95x, with particularly high demand from NIIs and retail investors, while the reported GMP has remained in a range that implies a potentially large listing premium.
But the interesting part of the IPO isn’t just the GMP.
Tempsens operates in a specialised industrial segment with an established market position, growing revenue and profitability. At the same time, investors need to weigh the valuation, working-capital requirements, industrial-sector exposure and the fact that most of the ₹650 crore issue is an OFS.
For listing-focused investors, the current demand and GMP make the issue worth watching—but not risk-free. For long-term investors, the business fundamentals and valuation matter far more than the grey-market premium.
The IPO remains open until 24 August 2026. GMP and subscription figures should be rechecked before making an application because both can change during the remaining bidding period.
This article is for informational purposes only and is not investment advice. IPOs can result in losses, and grey-market premiums are unofficial indicators rather than guaranteed listing prices.
