Asin was born in Cochin, Kerala, India on the 26th of October 1985 to Joseph and Seline Thottumkal.  Her father is a businessman dad,and mom is a doctor who practices in Ernakulam.

She attended Naval Public School in Cochin, and after obtaining her Matriculation, was enrolled in St. Theresa's Higher Secondary School. After successfully obtaining her Higher Secondary School Certificate, she enrolled in St. Theresa's College to continue studying in the Arts Faculty.