From Ego to Enlightenment.

How can we drop the ego?  how can attain –  ‘AHAM BRAHMASMI‘ state?  there are  ways one is Meditation  second one is Karma Yoga.  but we have  to travel on   both. otherwise we can not become Enlightened.  if we do only Meditation,  we will  get 50%  result. when we implement  ‘ Karma Yoga‘  without Meditation we can gain  50% only  . when we  work on both 100%  MOKSHA or   Enlightenment will come.