Dear Shrish,

Use hankel  built-in function of MATLAB. Here you can find details: 

http://www.mathworks.com/help/matlab/ref/hankel.html?refresh=true

This Matlab function for generating Hankel Matrix but when i have a array of 102 elements (different values) i can not use this function. 

Let's assume your array is:

C = 1:102; % A row vector

H = hankel (C);

This is what you are looking for, isn't this? This command runs without any problem on my system. Please let me know what is the error you receive?

Let take the 7 elements of a array instated of 102.

a = [854, 601,350,266,138,118,178]

Here i want to generate the hankel matrix of array a  for that through matlab. 

>> a = [854, 601,350,266,138,118,178];

>> aHankel = hankel(a);

>> aHankel

aHankel =

854 601 350 266 138 118 178

601 350 266 138 118 178 0

350 266 138 118 178 0 0

266 138 118 178 0 0 0

138 118 178 0 0 0 0

118 178 0 0 0 0 0

178 0 0 0 0 0 0