I was born on the Himavat when the constellation Uttara Phalguna was on the ascendant and hence they call me Phalguni.
उत्तराभ्यां फल्गुनीभ्यां नक्षत्राभ्यामहं दिवा। जातो हिमवतः पृष्ठे तेन मां फाल्गुनं विदुः॥