Tempsens Instruments IPO Closes Final Bidding Day With Heavy Oversubscription Ahead of Aug. 28 Listing

On Monday, August 24, 2026, the Tempsens Instruments (India) Limited mainboard IPO closed its final day of bidding, ending a four-day subscription window that drew heavy demand from retail and high-net-worth investors. The ₹650-crore public issue — priced between ₹285 and ₹300 per share — was oversubscribed by roughly 43 times by the close, according to provisional exchange data cited in Indian business media. Unofficial grey market premium (GMP) signals pointed to a potential listing gain above 100%, with shares scheduled to debut on the BSE and NSE on August 28.

Editor’s note: This article draws on NSE subscription data, company filings, and reporting by NDTV Profit, News18, Livemint, Zee Business, and India Infoline on August 24, 2026. Subscription figures are provisional until the registrar finalises the book.

IPO terms at a glance

Detail	Figure
Total issue size	₹650 crore
Fresh issue	₹95 crore (about 32 lakh shares)
Offer for sale (OFS)	₹555 crore (about 1.85 crore shares)
Price band	₹285–₹300 per share
Lot size	50 shares
Minimum retail investment	₹15,000 (at upper band)
Subscription window	August 20–24, 2026 (closes 5:00 PM IST on final day)
Post-issue market cap	About ₹2,515 crore (at upper band)

ICICI Securities is book-running lead manager; KFin Technologies is registrar.

How investors responded on the final day

Tempsens Instruments opened for subscription on Wednesday, August 20. By the morning of the final bidding day, the issue had already been booked more than 21 times, with non-institutional investors driving much of the early momentum.

Provisional category-wise subscription at the close of bidding on August 24:

Investor category	Subscription (times)
Non-Institutional Investors (NII) — big HNI	133.73
Non-Institutional Investors (NII) — small HNI	124.45
Retail Individual Investors	28.15
Employees	49.75
Qualified Institutional Buyers (QIB)	3.50
Overall	43.09

Demand built steadily across the offer period. On Day 1 (August 20), the issue was subscribed 5.73 times overall. By Day 2 (August 21), total bids had climbed to roughly 21 times, with the NII portion alone crossing 52 times. Retail participation also strengthened, rising from about 6 times on the opening day to 18 times by Day 2.

The pattern mirrors several recent Indian IPOs where wealthy individual investors and small retail bidders pile in ahead of a perceived listing pop, while QIB demand remains comparatively measured.

Grey market premium and listing expectations

Ahead of the close on August 24, unofficial GMP estimates ranged from about ₹277 to ₹313 per share above the upper price band of ₹300, according to market trackers quoted in Indian financial media.

GMP level (approx.)	Implied listing price	Estimated listing gain
₹277	₹577	~92%
₹313	₹613	~104%

GMP reflects informal trades in the grey market and is not an exchange price or a guarantee of the opening quote. Still, the signals aligned with the heavy oversubscription and helped fuel last-day bidding interest as investors weighed whether to apply before the window shut.

Key dates after bidding closes

Event	Date
Basis of allotment finalised	August 25, 2026
Refund initiation	August 27, 2026
Shares credited to demat accounts	August 27, 2026
Listing on BSE and NSE	August 28, 2026

Allotted investors can check status through the registrar and their brokers once KFin publishes the allotment outcome.

What Tempsens Instruments does

Founded in 1990 and headquartered in Udaipur, Rajasthan, Tempsens Instruments is a thermal engineering and specialised cable manufacturer. The company designs and builds customised solutions across three main verticals:

• Temperature sensing — thermocouples, RTDs, pyrometers, thermal imagers, thermowells, transmitters, and calibrators
• Electrical heating — immersion, cartridge, band, tubular, and furnace heaters, plus laboratory and process furnaces
• Specialised cables — instrumentation, thermocouple, RTD, heat-trace, and mineral-insulated metal sheath cables

Tempsens operates 15 manufacturing units — 10 in India and five overseas in the UAE, Indonesia, Germany, Poland, and South Korea — and exports to more than 80 countries. Its products serve industries including steel, power, oil and gas, aerospace, pharmaceuticals, and glass.

For FY26, the company reported revenue of about ₹444.88 crore and profit after tax of ₹71.07 crore, according to IPO disclosures cited in market coverage.

Management says the ₹95-crore fresh issue proceeds will fund capital expenditure (about ₹18.13 crore), debt repayment (about ₹5 crore), and general corporate purposes. The OFS allows existing shareholders — promoters hold roughly 46% pre-issue — to sell part of their stakes.

What the strong close means for investors

For applicants who bid on the final day, the oversubscription level implies retail allotment will likely be partial — many successful bidders receive only a fraction of the shares they applied for, with excess funds returned after allotment.

Investors who missed the offer can still buy shares on the exchanges after listing, but at market prices that may differ sharply from GMP hints. Post-listing volatility is common when IPOs open with large premiums and early holders take profits.

The debut adds a listed thermal-engineering name with export exposure and a niche in high-spec sensors and heaters — a segment tied to industrial capex cycles rather than consumer spending alone.

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Discussion

Tempsens Instruments’ oversubscribed close rewards those who applied early — but leaves most bidders with only partial allotments or none at all.

1. When GMP points to a 100%+ listing gain, does that make applying on the final day a rational bet — or mainly a lottery ticket?

Heavy NII and retail demand already priced in much of the upside before the close. If you applied, was it based on the business fundamentals or the expected opening pop?

2. Tempsens is a family-founded industrial manufacturer, not a consumer-tech unicorn. Does that change how you judge IPO hype versus a wiring-harness or fintech debut?

The company has decades of operating history and global factories, yet subscription rivalled hotter new-economy listings. Would you hold beyond listing day if you receive shares?

If you bid — or decided to skip — what would make you trust the opening price on August 28 as fair value?

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