You asked me a question which is the answer in itself. with 25% of all seats in education upto 12th class reserved for EWS, why have they not been filled? We have free education including books, stationary and uniform for SC/STs and yet they do not send their kids to school. Who's fault is that? The upper age limit for SC/ST candidates in UPSC exams is 35 years with no limit in number of attempts and yet they do not have adequate number of JS why? It takes a minimum of 25 yrs service to become a JS but if you are going to be selected in 35th yr of your life, how will you become a JS at the age of 60 yrs after putting in 25 yrs of minimum qualifying service? That is the reason they are asking for quota in promotions. First you refuse to get educated, than you demand lower cutoff to get a job that too after unlimited attempts and finally when you can't meet minimum qualifying service criteria, you ask for reservations in promotions.