Tenneco Clean Air India IPO: GMP Nears ₹123 on 16 November, 60x Subscription Sets Up Big Listing on 19 November
Tenneco Clean Air India’s ₹3,600 crore IPO closed with subscriptions at nearly 59–62 times, making it one of the quarter’s largest. The basis of allotment is due Monday, with listing set for Wednesday, 19 November 2025, on BSE and NSE. Grey market premium stands at ₹123 per share, implying a 31% premium over the issue price. The IPO is a 100% offer-for-sale by Tenneco Mauritius Holdings and other promoters.