How to become free from Karma?

The Bhagavad Gita 18.66

sarva-dharman parityajya 
mam ekam saranam vraja 
aham tvam sarva-papebhyo 
moksayisyami ma sucah



SYNONYMS
 
sarva-dharman--all varieties of religion; parityajya--abandoning;mam--unto Me; ekam--only; saranam--surrender; vraja--go; aham--I;tvam--you; sarva--all; papebhyah--from sinful reactions; moksayisyami--deliver; ma--not; sucah--worry.

TRANSLATION



Abandon all varieties of religion and just surrender unto Me. I shall deliver you from all sinful reaction. Do not fear.



 Human form of life provides a golden opportunity of engaging in devotion to Krishna and thus becoming free from all miseries inflicted on us by material nature. 
We should give up all religious activities and completely surrender to Krishna. As Krishna has promised us that he will free us from all sins if we surrender to him.