Only a certain fraction of this karma is chosen by God in order to form the blueprint of our next birth. The fruit that one experiences in this birth are due to prarabdha and a portion of the present agami. Similarly, a fish in the Ganga does not accrue Punya because of always living in Ganga. Good karma can be annulled by bad karma and a bad one by a good one. Sometimes we also hear that prarabdha cannot be got rid of. It has to be spent through. Bhagawan Vyasa says that for the full result of karma to manifest, three things are necessary. Then how to understand the statement that prarabdha should unavoidably be experienced?