Do banks give us interest even for the money that we only had briefly in our account?
Ditto @MichaelBorgwardt Just to get concrete: I just checked one bank in India and they say they are paying 4% on savings accounts. I don't know what you're getting or if 4% is typical in India, but it's at least an example. So if the bank pays interest based on average daily balance, and you left the money in the bank for a week, you'd get 4%/52 = .077%. So on Rs 95,000 that would be Rs 73. I live in the US where typical interest on a savings account today is about 1%. So an equivalent amount of money -- I think that would be about $1,500 -- would get 1/52 of 1%, or 29 cents.  Don't leave the lights turned on while you do the calculations -- you'll spend more on the electricity than you make on the interest. :-) ** Addendum ** This suddenly reminds me ... I read a news story a few years ago about a man who was expecting a tax refund check from the IRS of a few hundred dollars, and when the check arrived it was for several million. Well obviously it was a mistake. But he came up with the clever idea: Deposit the check in an interest-bearing account. Promptly contact the IRS, inform them of the mistake, and ask how and where to go about returning the money. Hope that it takes at least a few days for them to figure everything out. Then keep the interest accumulated on the several-million dollars for the time that he had the money. And as he contacted them immediately about the error, they can't say he was trying to hide anything. It was a nice try, but it didn't work. They demanded he send them the interest as well as the principle.