The Haryana Staff Selection Commission (HSSC) has opened applications for 5,500 Constable positions in Haryana Police, including 4,500 for males, 600 for females, and 400 for Railway Police. Applications are open online until January 25, with no fee required. Candidates need to have passed Class 12, studied Hindi or Sanskrit at matriculation, and qualified the CET Group C exam. The age limit is 18-25 years, with relaxations for reserved categories. The selection process involves CET scores, Physical Measurement Test, and Physical Screening Test.