Spotting Hidden Value in Legacy Chemicals and Defence PSUs Every round of shareholding filings throws up a few names that look odd at first glance. This time, two stand out. One is a defence PSU that builds metro coaches, mining dumpers and army trucks, and is now set to build high-speed trains. The other is a 66-year-old chemicals company from Kolkata whose stock slid to Rs 56 in March 2026. The first move belongs to Sunil Singhania, founder of Abakkus Asset Managers.