The best thing is to make sure that you have adequate amount of information on the rules of cricket. If you are looking for umpiring at a national level, you need to have at least five years experience as a national player, or you need to have an experience as a n umpire for 2 years in club matches. Enroll in the district or state umpiring association of the respective cricketing board for training and membership. Once you get membership to the association, you have to attend the selection tests and umpire courses according to the BCCI requirements. Once you become an umpire, you will be able to do your duties in the domestic circuit. If BCCI recommends your name to the ICC, you can work in the capacity of an international umpire.