PSU banks will need at least Rs 1.9 lakh crore additional capital by March 2019 as the lack of it will restrict their ability to write down non-performing loans, S&P Global Ratings said on Tuesday.
"We estimate that Indian banks may need a minimum of about $29.6 billion (Rs 1.9 trillion) over the next two years," S&P Global Ratings credit analyst Geeta Chugh said.
Public sector banks will need substantial capital to make large haircuts on loans to unviable stressed projects and to meet rising Basel III requirements, S&P said.
"The lack of capital restricts the ability of India's public sector banks to write down non-performing loans to more accurate levels. Weak profitability and rising capital demands from Basel III implementation will also continue to pressure the capitalisation of many of these banks," Chugh said.
The US-based agency said PSU banks will have to look for alternate sources to increase their capitalisation.
"India's public sector banks face three key challenges in tapping equity capital markets: low equity valuations, overcrowding in the market, and regulations. At the same time, they may find it hard to raise money via the issuance of additional Tier-1 capital instruments because the risk of default on these instruments is rising," S&P Global Ratings credit analyst Deepali Seth-Chhabria said.
"We think the polarisation of the market in favour of stronger banks will continue as banks clean up their balance sheets and the full requirements of Basel III kick in," it said.
Also, weak PSU banks would continue to lose market share to the better-performing private sector banks and profitable PSU banks, and non-bank finance institutions or domestic debt capital markets, it said.