Raising the issue during Zero Hour, Kunal Kumar Ghosh (Trinamool) said human skeletons were detected in mass graves in West Bengal.
"All these people, who were supporters of Trinamool Congress were killed by former government...What was the role of the National Human Rights Commission (NHRC) then," Ghosh said demanding to know how many these cases were investigated by NHRC.
He said 203 cases of human rights violation had taken place between June and December 2010 in 'Jungle Mahal' area during the previous regime.
The remarks by Ghosh, a first time Rajya Sabha member, drew angry protests from members of CPI-M including Sitaram Yechury and Tapan Kumar Sen after which P J Kurien, who was in the Chair, directed Ghosh not to level allegations.
But, persisting with the issue, Ghosh said, "Through you, I request the Home Minister to inform the House what was the role of NHRC, through you I want to send only one picture to Home Minister depicting how people were killed...How mass graves were recovered."
Amid angry protests by CPI-M leaders, he laid on the table of the House a photo purportedly depicting one such grave.
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Kurien, however, strongly objected to it saying "you being a first time member should adhere to discipline" and ruled that he had not permitted Ghosh to lay a copy of photo on the table and forced him to withdraw it.
His colleague Sukhendu Sekhar took away the photograph and displayed it in the House while demanding a probe. PTI NAM AMR