Chennai, Nov. 24 :    Chennai, Nov. 24:  In a minor reverberation in the O. Panneerselvam-led ADMK Cabinet in Tamil Nadu, minister for backward classes Valarmathi Jebaraj was dropped, the third to be sacked from the ministry so far. A Raj Bhavan communication late this evening said the portfolio held by Jebaraj was allotted to C. Shanmugavelu, minister for dairy development. Jebaraj recently lost her position as the ADMK women's wing secretary. Party chief Jayalalithaa was unhappy over the involvement of Jebaraj's brother, Manoharan, in the stabbing of Jebaraj's close aide and former reporter of Tamil biweekly Nakkeeran, Shanmughasundaram, at Madurai. While Jayalalithaa appointed party MP Gokula Indira as the new women's wing secretary a few days ago, Shanmughasundaram's death last night at a Madurai private hospital came as a further embarrassment to the minister and party leadership. Jebaraj's brother was taken into custody by Madurai city police yesterday. Jebaraj, who defeated DMK's P.T.R. Palanivelrajan in the May polls, has turned a liability for the ADMK, prompting Jayalalithaa's action, sources said.