The Tenneco Clean Air IPO is in its final day, and excitement around it is growing fast. Investors across the market are watching it closely because the issue is seeing strong demand and a rising GMP (Grey Market Premium). This simple breakdown explains everything in an easy, friendly style.
Let’s go through the full Tenneco Clean Air IPO analysis, including subscription status, GMP trend, allotment dates, and why people are talking about it today.
Tenneco Clean Air IPO: What’s Happening Right Now?
The IPO is live for its last day of bidding, and investor interest has picked up strongly. Over the past two days, the subscription trend has been steady from retail investors, HNIs, and institutions.
The excitement is also driven by a 22% rising GMP, indicating the possibility of listing at a premium over the upper price band of Rs 397 per share. This growing premium often signals strong demand and positive sentiment.
What Does Tenneco Clean Air Do?
Tenneco Clean Air works in the clean-tech and automotive components space. The company builds emission-control and clean-air solutions that help vehicles become cleaner and environmentally friendly.
Their systems are used by global automobile manufacturers, making the company an important player in the shift toward greener mobility. As environmental regulations tighten worldwide, companies like Tenneco Clean Air gain even more importance.
Key IPO Details Explained Simply
- Total fundraise: Rs 3,600 crore
- Type: 100% Offer for Sale (OFS)
- IPO opening date: 12 November 2025
- Last day to apply: Today
- Price band: Rs 378 to Rs 397
Even though this is a complete OFS, the issue is attracting strong demand because the company is globally recognized in the auto-components sector.
Why Is the GMP Rising?
The Tenneco Clean Air IPO GMP has increased by 22%. A rising GMP usually indicates:
- Expectations of strong listing gains
- Positive market sentiment
- Increasing demand on the final day
While GMP is not an official metric, it often reflects real market excitement.
Allotment and Listing Timeline
- Allotment result date: 18 November 2025
- Expected listing date: 19 November 2025
- Listing exchanges: NSE and BSE
- Allotment check: MUFG registrar website
- Lead managers: JM Financial, Citi Global Markets, Axis Capital, HSBC Securities
Should You Track This IPO? (Simple View)
The Tenneco Clean Air IPO is gaining traction because:
- It operates in clean-air, environment-friendly technology
- The GMP is rising
- Subscription demand is strong
- The company has a global presence and reputed clients
For listing gain seekers, the rising GMP is attractive. For long-term investors, the clean-tech theme offers a strong future angle.
Final Thoughts
The Tenneco Clean Air IPO is closing today with rising hype, a strong 22% GMP trend, and steady investor interest. With its global business, clean-air technology focus, and strong lead managers, it has all the elements of a high-attention IPO.

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