I am not able to concentrate!

I can't concentrate on anything even for 1 minute, what should I do to improve my concentration?

Dear,

Concentration is a process of accepting what you think is good for me and rejecting what seems to be unimportant at that moment. It is a division which is totally based on your past and somethings that you have been taught to give value over the other.

This game of division will always result to conflicts, and there is Attention. Let's see what it is:

Attention is a quality of the mind. Attention is the deep desire of the mind to understand. Understanding means settling down, becoming quiet.

Attention arises when the mind says that the ripples created by objects in mind must settle down. 

These objects could be:

1. a TV program
2. two people and their chatter
3. the disquiet of the mind itself

However, remember that there is a difference between attention and concentration. 

In attention, there is no specific object. Attention is the quality of the mind in which it is alert to everything, including itself. Hence, whatever is in its purview its its object. 

Alternately, there is no (specific) object. Alternately, the mind itself is its own object.

In concentration, there is a process of ego-based choice involved. Concentration is fragmentary. Concentration is upon a specific object that the ego has chosen for its benefit. 

Concentration does not give understanding, it only gives pleasure and satisfaction. Attention doe not involve any likes or dislike that's why it is beyond the vicious loop of pleasure and pain.

I have elaborated a lot on these topic in my blog "Shri Prashant- Words into Silence"