Repo (repurchase) rate also known as the benchmark interest rate is the rate at which the RBI lends money to the commercial banks for a short-term (a maximum of 90 days). When the repo rate increases, borrowing from RBI becomes more expensive. If RBI wants to make it more expensive for the banks to borrow money, it increases the repo rate similarly, if it wants to make it cheaper for banks to borrow money it reduces the repo rate. If the repo rate is increased, banks can't carry out their business at a profit whereas the very opposite happens when the repo rate is cut down. Generally, repo rates are cut down whenever the country needs to progress in banking and economy.