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Tenneco Clean Air IPO: The initial public offering (IPO) of Tenneco Clean Air India Limited opens for public subscription today, November 12, and will remain open till November 14, 2025. The issue is entirely an offer for sale (OFS) of 9.07 crore shares worth Rs 3,600 crore.

The basis of allotment of the IPO shares is expected to be finalised on November 17, 2025, and the stock is likely to list on both the stock exchanges (BSE and NSE) on November 19, 2025, tentatively.

The IPO of Tenneco Clean Air India Ltd is a book-build issue of Rs 3,600 crore, comprising an entirely OFS of 9.07 crore shares. Through OFS, Tenneco Mauritius Holdings Limited, Tenneco (Mauritius) Limited, Federal-Mogul Investments B.V., Federal-Mogul Pty Ltd and Tenneco LLC are offloading their stakes.

JM Financial Ltd is the book-running lead manager of the issue, while MUFG Intime India Pvt Ltd is the registrar of the issue.

The IPO has allocated 50 per cent, 35 per cent and 15 per cent of the net offer for the QIB, NII and retail investor categories, respectively.

Tenneco Clean Air IPO price band: Rs 378 to Rs 397 per equity share

Tenneco Clean Air IPO subscription date: From November 12 to November 14, 2025

Tenneco Clean Air IPO lot size: 37 shares (minimum investment of Rs 14,689)

Tenneco Clean Air IPO allotment date: November 17, 2025 (tentatively)

Tenneco Clean Air IPO listing date: November 19, 2025 (tentatively)

Tenneco Clean Air India Limited is a subsidiary of Tenneco Inc. and deals in designing and manufacturing clean air and powertrain products for automotive applications.

Incorporated in 2018, its product portfolio includes catalytic converters, diesel particulate filters (DPFs), mufflers, and exhaust pipes.

Financially, the company reported a revenue decrease of 11 per cent while its profit after tax (PAT) rose by 33 per cent in the financial year ending March 31, 2025.