to stop political and leadership problem: In constitution must have.... Above 60 age can not be prime minister of Nepal. One person can be prime minister only 2 terms and each terms must be 4 YEARS. There should be minimum education qualification to be prime minister and ministers. Crime and corruption record must be clean ( Even No singel doubt/accuses) Person who wants to nominate for minster or prime ministers. History record and background must be very serious.