Why is there a focus on upper castes in the MLC elections? 60% of the candidates are upper caste. The BJP's focus is on Yadavs. How Tejashwi has devised this equation?

Elections are being held for the 8 graduate and teacher seats of the Bihar Legislative Council. The faces of the parties have also become almost clear. There is a complete imbalance in the representation of castes in the selection of party candidates. From the assembly elections to the appointment of office bearers in the party, the leadership that used to calculate castes has completely sidelined all these factors here. 6 parties (BJP, JDU, RJD, Jan Suraj and CPI)