Indian lenders, however, have limited dependence on such securities, Jefferies said in a note.
"Another instance of AT-1 bond write-off questions seniority of claims of AT-1 bond holders and dampens sentiments for AT-1 market issuances," Citi analysts wrote in a note.
AT-1 bonds are hybrid securities which have loss absorbing features and can be written-down under certain scenarios, including a depletion of capital.
The AT-1 bonds of India's Yes Bank were written down in March 2020 after the Reserve Bank of India initiated a restructuring of the lender with some value attributed to the bank's equity.
Despite the YES Bank precedent, Indian banks have raised AT-1 bonds at 65-75 basis points premium over government bonds, Citi said.
Banks AT-1 capital Risk-weighted AT-1 capital (In billion assets (In as % of RWA rupees) billion rupees) Private Banks HDFC Bank 123 15,363 0.80% ICICI Bank 51 10,414 0.50% Axis Bank 48 7,953 0.60% IndusInd Bank 15 3,225 0.50% YES Bank -- 2,441 0% State-run banks State Bank of 415 26,940 1.50% India Canara Bank 124 5,573 2.20% Punjab 87 6,361 1.40% National Bank Bank of India 29 3,406 0.80% Indian Bank 20 3,227 0.60% Source: Jefferies India's state-run banks have a higher share of AT-1 bonds as compared to private banks, according to Jefferies.
Since the Yes Bank episode, the issue of such papers has slowed as investors leaned towards larger, high-quality banks, it said.
"Among banks, top-3 issuers are SBI, HDFC Bank and Canara Bank with PSU (Public Sector Undertaking) banks having higher contribution from this," the Jefferies report said, adding that smaller banks have a lower contribution from AT-1 bonds. "Local bond market investors aren't really seeing risks here for Indian stocks."
However, the state-run banks' common equity Tier-1 capital ratios are low and a weak AT-1 bond market could necessitate equity capital raising, particularly in the case of the State Bank of India, Macquarie analysts said on Tuesday.