

ICICI Prudential Asset Management Company has received the Reserve Bank of India’s (RBI) approval to acquire up to a 9.95% stake in Thrissur-based CSB Bank.
The approval covers up to 9.95% of the bank’s paid-up share capital or voting rights. CSB Bank informed the stock exchanges about the RBI approval through a filing dated September 8.
The move brings one of India’s leading asset management companies closer to becoming a significant institutional investor in the Keralam-based private sector bank.
The RBI approval is subject to compliance with several banking, securities and foreign exchange regulations.
The approval does not necessarily mean that ICICI Prudential AMC will immediately acquire the full 9.95% stake. The actual investment will depend on the AMC’s investment decisions and applicable regulations.
The RBI has previously allowed ICICI Prudential AMC and related entities to acquire significant stakes in several private sector banks.
The list includes:
Federal Bank
Bandhan Bank
IDFC First Bank
HDFC Bank
RBL Bank
CSB Bank
In February 2026, RBI approval was reported for ICICI Prudential AMC and ICICI Bank group entities to acquire an aggregate holding of up to 9.95% in eight banks. The approval covered banks including Federal Bank, HDFC Bank, IDFC First Bank, Bandhan Bank, RBL Bank, City Union Bank, Equitas Small Finance Bank and Karur Vysya Bank.
For CSB Bank, the latest approval could potentially bring in a large institutional investor at a time when the bank’s share price has faced considerable pressure.
Despite the RBI approval, CSB Bank shares fell more than 2% during Wednesday’s trading session.
The stock has declined more than 36% so far in 2026, while the one-year decline stands at around 14%.
The proposed investment by a major asset management company could therefore draw attention from investors, particularly against the backdrop of the sharp correction in the bank’s share price.
The approval is significant because a holding of 5% or more in a bank generally requires prior RBI approval. The permitted ceiling of 9.95% also puts ICICI Prudential AMC close to the regulatory threshold for non-promoter shareholding in banks.
However, the RBI clearance is an enabling approval rather than a confirmation that the entire 9.95% stake will be purchased immediately.
For CSB Bank, the development could bring greater institutional participation and potentially strengthen investor confidence, although the impact on the share price will depend on the actual investment, the bank’s financial performance and broader market conditions.
The RBI approval is valid subject to the conditions specified by the central bank and compliance with all applicable laws and regulations.