Bail pleas of Rupender and Mahak Singh were rejected on Monday by the district sessions court judge Rama Jain, who said that there was no case of bail here.
According to the prosecution, Meherdin, Rahis, Tahir and Wahid were killed in the riots on September 8, 2013. Wahid was burnt alive, they said.
Police had registered two cases in connection with Meherdin's killing while one case for the murder of Rahisa Tahir and Wahid.
More than 60 persons were killed and over 40,000 displaced in communal violence that had broken out in Muzaffarnagar and adjoining areas in September this year.