Mole or beauty spot or til on ear is considered as bad in Hinduism. But
in some communities it is considered good. The position of beauty spot, locally
known as til, has specific meaning to certain communities. It is also only
given importance in certain regions.
The person with til on ear will not have a long life is the
common belief in many communities. Some communities are of the view that person
with beauty spot on ear will make lot of friends and will have a prosperous
life.
It must be remembered that the use of beauty spot to
determine future etc is not followed by majority of Hindus. It is limited to
certain communities and regions.
There are also no references in Hindu scriptures which talk
about the importance of beauty spot.
It would be good if you do not follow such things and
concentrate on your studies and career and put that energy in studying scriptures like the Bhagavad Gita.
Also there is no consistency regarding these beliefs. What
is good for one community is bad for another.