Tenneco Clean Air India IPO: GMP Nears ₹123 on 16 November, 60x Subscription Sets Up Big Listing on 19 November

On Sunday, 16 November 2025, investor focus in India’s primary market is firmly on Tenneco Clean Air India Ltd, the auto-systems maker whose ₹3,600 crore IPO has turned into one of the biggest blockbusters of the quarter. With the issue subscribed nearly 59–62 times and the grey market premium hovering around ₹123 per share, the street is now gearing up for allotment finalisation on Monday and listing on Wednesday, 19 November 2025. Upstox - Online Stock and Share Trading+2Business Standard+2