when a egg is dropped in vertical direction.what will happen?

Answer 1

Presuming there is enough distance to permit it to happen, the egg, being an oval shape, will rotate until the small end points downwards and the wider end upwards. The small end will land first.

The smaller end goes through the air easier, and the drag caused by the larger end keeps it at the top.

Answer 2

You get a small omelette, but only if you drop it onto something hot.