Rural certificate in karnataka

I belong to OBC-Hindu vokkaliga My child studied from 1st std to 10th std in karnataka criteria for rural certificate are in my knowledge is (1) child should studied in 1-10std in karnataka only (2)and 10th studied school situated village/town population should be within 50000 as per 1991census.otherthan this i do not know other criteria and not getting any orders..in any of the govt order(in my knowledge) sir,I doing service in central govt public sector and joined as GROUP-C employee and get promoted to GROUP-B and then GROUP-A..still in service as per central govt orders for NON CREMY LATER OBC certificate EXCLUDING salary income and agriculature imcome should not cross 8lac.. which is i fulfilliing the criteria and getting OBC certificate (because of recruited as GROUP-C employee)................ BUT NOW THE PROBLEM IS .....the BEO(BLOCK EDUCATION OFFICER) not certifying that the child is studied in rural area... if questioned... he is telliing that you are highly income employee(more than 8lac). our question is one side issueing the certificate of non creamy layer certificate that salary income is not a criteria. On other side salary income is ..is a income..so this is not possible..if asked/orgued... telling that bring/show the orders...if we asked the BEO for the order...he is not responging and not signing also... please help me what to do..?