what relation would this be termed in law?

Hi iam Sam,(hindu) I eloped with Amit against my parents wishes. We were never married in the court or in a temple, we just lived together. We have a son. I lived with Amit for 7 years and left him for his drinking habit and physical abuse. We are living separately since 3 yrs now. My questions are. 1. What is this kind of relation termed in law? 2. As we do not have any marriage taken place and have no documentary evidence, is this relation even recognised in law? 3. Are we both legally obligated in any manner, towards each other? For eg: remarriage, property, assets or liabilities ? 4. As there is a child born out of this relation, does it automatically make us husband and wife? 5. As there is a child from this relation, is it necessary to legally dissolve our relation in any way?