Days after Bihar Minister Santosh Kumar Suman quit Chief Minister Nitish Kumar-led cabinet, Janata Dal-United (JD-U) MLA Ratnesh Sada was sworn in as a cabinet member in Patna today. The lone legislator from the Musahar community, considered weakest among Dalits, Mr Sada could become a state minister replacing Mr Suman, who on June 13 resigned saying his party's existence was under threat due to pressure to merge with JD(U), and he needed to protect it.