Goddess Lakshmi is the goddess of wealth and the prosperity. She is the consort of Lord Vishnu. She is worshipped in several forms.
Goddess Lakshmi is also worshipped as Santan Lakshmi, the one who bestows her devotees with off-springs. Santan Lakshmi is part of Ashta Lakshmi, the eight popular forms of Bhagawati Lakshmi.
It is believed that Devi Lakshmi herself is blessed with eighteen sons. The devotees chant following names on every Friday to please and to get blessings of Goddess Lakshmi.