Matrimonial Investigators in the Private Detective Agency in Delhi. It is absolutely necessary to have the facts verified before marriage rather than regretting later on. At any point, the suspect should not come to know about your individuality. It must remain anonymous. In Pre Matrimonial investigation we check the social status, financial position, past activities whether he/she is indulged in any crime or illegal activity, the behavior of the prospective partner is violent or not, etc.