Hi Himanshu,

Appreciate that you gave a try to re-run the solution to Anjaneya.
Requesting you to post all of these files:
1.mapred-site.xml
2.hdfs-site.xml
3.core-site.xml
4.hadoop-env.sh
Most likely one of these files is having some mis-configured element and causing this issue.

Meanwhile, try to create directory with following command:
hadoop dfs -mkdir /tmp/test
Note that we are creating directory under /tmp to which current user must be having permissions for creation.

Hope this helps.
Happy learning @ Dezyre !!