An integral part of most Tamil weddings is “Moi”—the cash gift or something in kind given to a couple. And the donor’s name and the amount are entered on a ledger and entries are announced over the tannoy. How much “Moi” one gives is something the donor-relative proudly wears on his sleeve in the hope it gets reciprocated when he hosts a similar function. A wrong ledger entry can result in disputes, sometimes fisticuffs. The bookkeeper handling the cash—usually a relative—remains under pressure. But digital technology has ensured that no cash changes hands and the money gets credited directly to the couple’s account.