<p> New Delhi, Aug 6 (PTI): The NHRC on Thursday said it has sent notices to Madhya Pradesh government and police authorities over reports that a class 4 student was allegedly assaulted and subjected to "casteist slurs" by a teacher at a government-run primary school in a village in Shivpuri district.</p><p> The National Human Rights Commission observed that the contents of the news report, if true, raise serious issues of violation of human rights.</p><p> The rights panel said it has taken suo