Auto Components - Listed on 19 November 2025
Tenneco Clean Air India (Auto Components) closed its IPO window in 2025 and listed on NSE and BSE on 19 November 2025 at an upper band issue price of Rs 397, opening at Rs 505 for a listing gain of +27.2% and closing day one at Rs 490.8 (+23.6% on closing basis). The IPO was subscribed 58.83x overall - QIB 166.42x, HNI/NII 40.74x, Retail 5.11x. The total issue size was Rs 3,600 Cr (Fresh Issue Rs 0 Cr, OFS Rs 3600 Cr). IPO GMP data, subscription trends across Day 1 - Day 3 and Nifty performance around the listing window are detailed below.
Auto Components
Tenneco Clean Air India operates in the Auto Components space. The company’s listed profile is shaped by its operating niche, customer demand and ability to convert that demand into steady cash flows. Investors should read its exchange filings alongside the headline listing numbers for a fuller view of the business.
Issue structure, listing outcome and context
The Tenneco Clean Air India issue was offered at an upper price of Rs 397 and raised approximately Rs 3,600 crore. The final outcome reflected a mix of subscription demand, valuation, market conditions and the company’s own operating story. Fresh issue and offer-for-sale details, where available, are shown in the issue metrics below.
Number of times each investor category subscribed by close of Day 3.
How overall subscription built up across the three-day issue window.
Grey market premium (GMP) tracked day-by-day across the IPO window. Absolute GMP is the premium in rupees over the upper issue price; GMP % is that premium as a percent of the issue price.
| Day | GMP (Rs) | GMP % |
|---|---|---|
| Day 1 | Rs 65 | +16.37% |
| Day 2 | Rs 58 | +14.61% |
| Day 3 | Rs 58 | +14.61% |
| Day 4 | Rs 85 | +21.41% |
| Day 5 | Rs 75 | +18.89% |
Comparison between market-based GMP prediction and IPOGyani's AI-powered listing gain prediction.
How the broader market moved around the Tenneco Clean Air India IPO window. Helpful for isolating how much of the listing gain came from company fundamentals vs. market tailwind.
Tenneco Clean Air India IPO listed at +27.2% versus the upper issue price of Rs 397 on 19 November 2025.
Tenneco Clean Air India IPO was subscribed 58.83x overall. QIB portion was subscribed 166.42x, HNI / NII 40.74x and Retail 5.11x.
IPO GMP started at Rs 65 on Day 1 and moved to Rs 75 by the close of the issue window. See the day-by-day GMP table above for the full trajectory.