Registration of marriage is a mode of proof of marriage. On adducing the registration certificate of marriage, it may be presumed by the law that marriage is deemed to has taken place. In India, a marriage can be registered under either of the two Marriage Acts: the Hindu Marriage Act, 1955 or the Special Marriage Act, 1954. To be eligible for marriage, the minimum age limit is 21 for males and 18 for females.
The present stage your relationship is likely to be say a living relationship.It is a living arrangement. So you have to prove that either your marriage is done by ceremonies and customs of marriage or you are Live in Relationship.
In a petition between Payal Katara and Superintendent of Nari Niketan, Agra, the Allahabad High Court on 4th March 2002 came up with a bold judgment by stating that anyone, man or woman, could live together even without getting married if they wished.