The Reserve Bank of India (RBI) has sought details about lenders’ exposures to the Adani Group, banking sources said, a day after the conglomerate withdrew the Rs 20,000-crore ($2.5 billion) follow-on public offer (FPO) of its flagship firm Adani Enterprises.

On Wednesday, Swiss lender Credit Suisse stopped accepting bonds by Adani Group companies as collaterals for margin lending. On Thursday, Adani Group’s market losses swelled to more than $100 billion, sparking worries about their potential systemic impact.