Dear Himanshu:
Not everyone chooses a career path because of passion they have. Passion for a particular career is not necessary. Maybe an interest is enough, a curiosity you have about a particular thing, wanting to know more about it or getting better at doing it.
If you want to share about how old you are, whether you attend (or attended) university or just graduated high school, or maybe you are working, please do, as well as what have been your interests so far, and what are your goals in life.
anita