Lotus is a flower that has a lot of meaning and symbolism in Hindu culture and iconography.
It is often associated with the Goddess Lakshmi as (Lotus)Padma-Lakshmi.
She is often portrayed in Hindu Art, as a Goddess seated upon a large lotus flower.
In more contemporary times, it also seen in the official/political symbol of the Hindu Bhartiya Janata Party (BJP)
See Padma and Kamala for more information.
You may also want to read more about Hinduism here.
Be sure to check out my writings on religion here.