sell by auction meaning in Hindi

Examples

1. An attempt to sell by auction was made in 1866, but the eventual sale took place in 1867.
2. I see that the latest rule proposed in the rebel Congress is to sell by auction all slaves taken in arms _ but no rational man would buy them; they know too much.
3. Here in the USA, the rights to broadcast in just one section of the 700MHz region of the radio spectrum is about to sell by auction for at least 4.6 billion dollars.