Shares in the flagship firm of beleaguered Indian tycoon Gautam Adani slumped 10 percent at the open on Friday.
And trading was suspended, extending a rout triggered by allegations of accounting fraud.
Adani Power, Adani Green Energy, Adani Total Gas — in which French giant TotalEnergies has a 37.4 percent stake — and Adani Transmission were also suspended after they fell to hit their trading stops.