Section 85 of the Succession Act, 1965 deals with the revoking of a Will. Where a single person has made a Will, the subsequent marriage of the person shall revoke the Will, unless the Will was made in contemplation of that marriage. In other circumstances, a Will can be revoked either by (1) another Will, (2) a codicil, (3) some writing declaring an intention to revoke the Will, and executed in the manner in which a Will is required to be executed, (4) by the burning, tearing or destruction of the Will with the intention of revoking it.