"I am saying as a (former) judge the way the execution took place - his clemency petition was rejected on February 3 and the execution took place on February 9.
"This is wrong. He had the right to challenge it. Family members have the right to be informed about it. The human right is there as long as the noose is not tightened around the neck," he said.
Guru's hanging had created ripples in the country and a few quarters had questioned the handling of the entire episode.