Fairfax faces CSB choice in $5.6 bn IDBI stake deal

Fairfax Financial Holdings is set to buy nearly 61% of IDBI Bank for ₹52,878 crore ($5.6 billion), Business Standard reported in an Oct. 14 article.

The choice matters because Fairfax already owns 40% of CSB Bank; as of June 30, 2026, IDBI Bank’s ₹4.44 trillion balance sheet dwarfed CSB Bank’s ₹58,101 crore.

India’s government will sell 30.48% of IDBI Bank, while Life Insurance Corporation of India will divest 30.24%, according to the article. After the transaction, the government would retain 15% and LIC 19%.

The government has given Fairfax two years to merge IDBI Bank and CSB Bank or exit its CSB holding, Business Standard reported. The choice would determine whether Prem Watsa’s group builds a larger Indian banking platform through consolidation or separates its smaller existing bank investment from the IDBI purchase.

“Fairfax is more likely to exit CSB Bank than merge it with IDBI Bank, as IDBI presents a significantly larger opportunity for the group to expand its financial services presence in India,” Vivek Iyer, partner and financial services risk leader at Grant Thornton Bharat, told Business Standard.

IDBI Bank had net advances of ₹2.58 trillion, deposits of ₹3.25 trillion and net worth of ₹59,024 crore as of June 30, 2026. Retail lending accounted for 70% of gross advances, with corporate lending at 30%. CSB Bank had gross advances of ₹40,867 crore and deposits of ₹45,515 crore.

The branch gap is also large. IDBI Bank had more than 2,000 branches, compared with 868 for CSB Bank, according to the article. Business Standard cited experts as saying a merger could combine CSB Bank’s retail focus with IDBI Bank’s broader retail and corporate lending franchise.

Integration would not be simple. IDBI Bank uses Infosys Finacle, while CSB Bank runs Oracle FLEXCUBE. Business Standard reported that aligning data structures, products and applications would carry costs, though Dinesh Kumar Khara, former State Bank of India chairman, said technology differences should not by themselves block a merger.

Iyer also pointed to labour and industrial-relations issues at IDBI Bank as possible obstacles. “IDBI already faces labour union and industrial relations challenges, and merging CSB into the bank would add significant integration complexities. Therefore, retaining CSB as an independent investment and eventually monetising the stake appears to be the more pragmatic option,” he said.

Fairfax’s Indian financial-services exposure extends beyond the two banks. Through FIH Mauritius Investments, it held 26.8% of IIFL Capital Services as of June 2026, and stakes of 24.5% in 5paisa Capital and 13.6% in IIFL Finance as of September 2026, according to Business Standard.

The proposed IDBI acquisition may lead Fairfax to reassess those holdings as well, particularly because of potential regulatory considerations, Iyer told Business Standard. The article also said Fairfax has been reported to be exploring a sale of its entire IIFL Finance stake.