Unable to get my son admitted in HPS Begumpet!!! Please Advice!!

My son is due to be admitted to PP-1 for next year. I have submitted application to HPS begumpet. My main motivator is: 1. Decent school with established procedures. 2. School fees will not be increased drastically like private schools. 3. Good campus and facilities for sports. I desperately want him to be admitted there. I have even submitted a recommendation letter from a big BJP leader. But the school administration is not caring. Some requests from prominent personalities were also given. But of no use. What more should i do to get the admission. I belong to BC category(if that helps anyone)