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Tenneco India explores diversifying beyond auto sector, eyes M&A plans

Tenneco Clean Air India set out an expansion in a defence development.

· BS Companies

Tenneco Clean Air India is exploring acquisitions in rail, aerospace and defence, while expanding its automotive portfolio across internal combustion, hybrid and electric vehicles.

Against that, the stock is +0.3% on the day at ₹424.55, and has returned -24.6% over three months. It sits 35% below its 52-week high, which means a good deal of bad news was already in the price. The auto sector has moved -6.0% over the same period, so Tenneco Clean Air India is running 18.6 points behind its peers.

For Tenneco Clean Air India, the question is how much of this is already reflected in the price and how much re-rates the auto peer set alongside it.

  • Defence orders carry long execution tails and policy tailwinds, which the market values for their visibility.
  • In focus: Tenneco Clean Air India (TENNIND), in Auto.
  • Over three months: Tenneco Clean Air India -24.6% against Auto -6.0% (18.6 points behind).
  • At least 25% below the 52-week high: Tenneco Clean Air India (35%).
  • Trading well above normal today: Tenneco Clean Air India at 3.3 times its 20-day average volume.
Figures for the companies in this story
CompanyPriceDay1M3MFrom 52-wk highVolume vs 20-dayMarket cap
Tenneco Clean Air IndiaTENNIND · Auto₹424.55+0.3%-10.4%-24.6%-34.8%3.3×—

Auto

1M +6.6% · 3M -6.0%

Tenneco Clean Air India

Defence & Aerospace

1M -0.8% · 3M -4.6%

Prices as of 9 Nov 2026, 16:11 IST. Sector moves are the average of the stocks we track in each sector.

TENNINDAutoDefence & Aerospace