IMPS
Full form: Immediate Payment Service
BankingIMPS is India's 24x7 real-time interbank fund transfer service available even on holidays. Transfers up to Rs 5 lakh per transaction. Charges: Rs 2.5-25 depending on bank (many banks now offer free IMPS). The predecessor to UPI.
In detail
Transfer modes: via MMID + mobile number, or IFSC + account number. Available through mobile banking, internet banking, and ATMs.nnComparison:nIMPS: 24x7, up to Rs 5L, small chargesnNEFT: 24x7 (since December 2019), up to Rs 10L, free at most banksnRTGS: only Rs 2L+, same-day settlement, freenUPI: 24x7, up to Rs 1-5L, free, simplest
Real-life example
Anand urgently transfers Rs 2.5L to his brother on a Sunday at 11 PM for a medical emergency. He uses IMPS -- money reaches in 30 seconds. NEFT would also work now (24x7), but IMPS is the traditional choice for instant guaranteed transfer.