Private Banks Seize Deposit Market Share from PSBs Since 2019

A Structural Shift in Indian Banking

The Indian banking landscape is undergoing a significant transformation as private sector banks (PVBs) consistently expand their deposit base at the expense of public sector banks (PSBs). According to a report by Union Bank of India, PSBs have seen their market share in total deposits erode by nearly 600 basis points over the last five years, signaling a clear shift in customer preference and competitive dynamics.

The Numbers Behind the Trend

Data reveals a stark contrast in the trajectory of the two banking segments. In March 2019, public sector banks commanded a dominant 63.2% of the total bank deposits in the country. By March 2025, this figure had dropped to 56.3%. During the same period, private sector banks successfully increased their share from 28.6% to 34.8%. The market share of other banks remained relatively stable, fluctuating between 8.1% and 8.8%.

This trend is not a one-off event but a sustained pattern of growth. In March 2025, private banks recorded a year-on-year deposit growth of 12%, comfortably outpacing the 9.3% growth posted by their public sector counterparts. This continues a pattern from the previous year, where private banks grew deposits by 20.1% against 9.4% for PSBs.

Deposit Market Share: PSB vs. PVB (2019-2025)

Beyond the Metros: Private Banks Expand Reach

Historically, rural and semi-urban regions were considered strongholds for public sector banks due to their extensive branch networks. However, private banks are now making significant inroads into these areas, challenging the long-held dominance of PSBs. Their growth in these regions indicates a broader acceptance and deeper penetration across the country.

In metropolitan areas, the competition is even more intense, with the market share of private banks in total deposits now nearly equal to that of PSBs. This suggests that urban customers are increasingly choosing private banks for their banking needs, driven by factors such as digital services and aggressive marketing.

An Unexpected Turn in Advances

While the deposit story heavily favors private banks, the narrative around lending, or advances, has seen a surprising twist. A Systematix Group report highlighted that in FY25, public sector banks reported a 12.2% year-on-year growth in advances. This is the first time since March 2010 that PSBs have outpaced the loan growth of private banks, which stood at 9.5%. This development suggests that PSBs are becoming more competitive in credit disbursement, even as they lose ground on the liability side of their balance sheets.

The CASA and Liquidity Challenge

The battle for low-cost deposits, specifically Current Account and Savings Account (CASA) funds, remains a key challenge for the entire sector. Tepid growth in CASA has been observed across the board, as higher interest rates on term deposits and other financial products make them more attractive to savers. Interestingly, the report notes that the CASA ratio of private banks is falling at a faster pace than that of PSBs across all regions. While PSBs still lead in CASA deposits in rural and semi-urban areas, private banks are steadily closing the gap.

Another critical metric is the Credit-to-Deposit (CD) ratio, which indicates a bank's liquidity. Here, PSBs appear to be in a more comfortable position. In the third quarter of FY25, PSBs' CD ratios were in the 68-82% range. In contrast, private banks operated with much higher CD ratios, ranging from 73-97%. A higher ratio suggests that a bank is lending out a larger portion of its deposits, which can pose liquidity risks if deposit growth falters.

Market Analysis and Outlook

The shift in deposit market share can be attributed to several factors. Private banks have been more agile in adopting digital technologies, offering superior customer service, and implementing aggressive marketing strategies. Their expansion into new geographies has also been a key driver of growth.

However, the entire banking system is grappling with a liquidity deficit, driven by high government balances with the RBI and increased overseas remittances. This has intensified the competition for deposits, forcing banks to offer more attractive rates on term deposits, which in turn puts pressure on their net interest margins.

Looking ahead, the competition for deposits is expected to remain fierce. Private banks are likely to continue their growth trajectory, but PSBs may leverage their vast network and government backing to regain some lost ground. The key for all banks will be to strike a careful balance between aggressive loan growth and stable deposit mobilization to navigate the evolving financial landscape effectively.