After seeing this incident I was thoroughly shocked and surprised.
I sat near a pile of bags that were alternately heaped up to a good height. After a few minutes, I spotted a medium sized black ant scuttling at a good speed. It was coming down the heap of the bags. It came to the topmost bag's edge and jumped to land perfectly on the surface of the bag below it. In this manner, bending it's tail occasionally, it reached the surface of the ground.
I picked it up and placed it on the topmost bag again. It repeated the same thing and came down again. I let it go this time.

I wanted to know that if this is a common phenomenon seen in black ants? Or is there something unusual about this.

I was probably not an ant, bikoz. Ants have a 3 segment body (head, thorax and abdomen), six legs and no tail. At least any member of the ant species that I know about.

I am sorry. It wasn't the tail.
It was the third segment.(abdomen, maybe)

If you see it again, try to capture it and show it to an entomologist or perhaps a student studying insects. The behaviour of this bug is unusual.

But I am pretty sure it was an ant. Nevertheless thanks for the help:-)

After doing a quiz today that had a question about an ant called Jack Jumper I had a quick look on Google and found this page. Perhaps that be of some help.

After another minute searching Google I found the following site which would probably be closer to the mark. Jerdon`s jumping ant.

Don't you just love Google? I have learnt so much through that search engine.

*Wow!* The posture of the first ant I saw was the same posture I saw the other day. Only the difference was that the ant was the common black one.
And thank you so much. I needed lots of pictures and information of insects. Looks that this site and some browsing will do. I am also interested in snakes.

The wiki picture is really very good. Thank you once again:-)

My pleasure Bikoz.

Google is great Madmags but also one of the biggest time wasters if you are like me and easily side-tracked!

I can certainly relate to that roos!

That is just plain fascinating. Those ants look quite... menacing! And it does say that they bite. Yikes. I was very surprised that, on the wiki page, it says those ants can jump almost a foot into the air to catch other insects to eat!!! Who ever heard of such a thing!?! Cool! I would very much like to see that. Bikoz, by the sound of things you should be glad you didn't get bitten. That doesn't sound very cool at all.

I did catch it from the back. It was in such a hurry that I had to leave it.