Statutory Liquidity Ratio / Single Lens Reflex

SLR Full Form in English, letter by letter

SLR is the Statutory Liquidity Ratio, the share of deposits banks must hold in liquid assets, or Single Lens Reflex, a camera design.

SLR Full Form in Indian Languages

SLR stands for two very different things: Statutory Liquidity Ratio, the share of bank deposits that must be held in cash, gold and government securities, and Single Lens Reflex, the camera design built around a mirror. Its name in six Indian languages follows.

SLR: the reserve every bank must hold

The Statutory Liquidity Ratio is the percentage of a bank's net demand and time liabilities, essentially its deposits, that it must hold in liquid form. Banks keep it as cash, gold or, most commonly, approved government securities valued at market price. The requirement comes from Section 24 of the Banking Regulation Act, 1949, and the RBI fixes the percentage within the limits set by law.

Net demand and time liabilities is the technical base: deposits you can withdraw any time plus fixed deposits and recurring deposits, after certain adjustments. Every crore of deposits therefore carries a slice that cannot be lent out. For example, if a bank has net demand and time liabilities of 1,000 crore rupees and the ratio is 18 per cent, it must hold liquid assets worth 180 crore rupees at all times. The ratio has to be maintained on a daily basis.

If a bank falls short on any day, it pays penal interest to the RBI on the shortfall, and repeated shortfalls attract stronger supervisory action. Banks can also borrow from the RBI against part of their SLR holdings in time of need, which is why these securities count as liquid. Check the RBI website for the current ratio, because it changes from time to time.

Why the ratio matters to the RBI and the government

SLR is a tool for controlling credit. Raise it and banks can lend less, which cools borrowing. Cut it and more money is free for loans. The RBI uses it with other tools such as the repo rate and the cash reserve ratio.

It also helps the government, since SLR holdings are government bonds, so the ratio creates steady demand for public borrowing. The interest on these securities gives banks a stable income, which is why SLR is gentler on banks than the cash reserve ratio.

For a depositor the effect is indirect but real. A higher requirement leaves banks with less to lend, which can mean slower loan growth and slightly higher lending rates, while a lower one does the reverse. It is one of several levers, so a single change rarely moves your loan rate on its own.

SLR versus CRR versus the liquidity coverage ratio

CRR: cash parked with the RBI

The Cash Reserve Ratio takes a percentage of the same deposit base and holds it as cash with the Reserve Bank, where it earns no interest. It is the sharper lever for draining or adding liquidity.

SLR: assets held by the bank itself

SLR stays with the bank as cash, gold or government securities, and those securities earn interest. Banks manage the portfolio while meeting the requirement every day.

Liquidity coverage ratio: the market cousin

Introduced in India in 2015, the LCR requires banks to hold high-quality liquid assets against expected cash outflows over thirty days. It is measured against cash flows and not against deposits.

In photography: how a single lens reflex works

Here SLR means single-lens reflex. A mirror sits at 45 degrees behind the lens and bounces the image up into a pentaprism, so the viewfinder shows what the lens sees, with no parallax error. Pressing the shutter flips the mirror out of the way and exposes the frame.

The design allowed metering through the lens and phase-detection autofocus through the mirror path. Film SLRs such as the Nikon F of 1959 defined the professional camera for decades, and the digital version, the DSLR, replaced film with a sensor while keeping the mirror.

DSLR versus mirrorless today

Mirrorless cameras drop the mirror and optical viewfinder and show an electronic preview instead. The gains are a smaller body, faster burst shooting and eye-detection autofocus. Major makers have moved most new development to mirrorless.

DSLRs still make sense second-hand: solid bodies, long battery life since the optical viewfinder uses no power, and cheap entry into a large range of older lenses. For a new purchase, mirrorless is where new lenses and bodies are appearing.

Check the context before reading SLR: in a bank statement or exam paper it is the Statutory Liquidity Ratio, and in a camera shop it is the Single Lens Reflex.

SLR Full Form: Common Questions