What I want to do is save or show object name using my csv column name.
Here you can see in my Pim all the items (objects) arrange under relevant category.
But object show as a random name! eg- 5c494cc5cc271 Is there way to set this random name using my csv column?
Thanks,
Tharanga.

In your mapping you have to map a value from your csv file to "o_key" field.
You can also use "key" setter - it will ensure that key value is correct.