As a biological father you have right to meet your child although the physical custody is with the mother as per consent agreement between both of you. If your wife refuse you to visit the child, you can still file application u/s 26 of the Hindu Marriage Act, 1955 for seeking visitation order from the Family Court. The provision of child custody and visitation can always be altered with change of situation even if there was an agreement contrary to this the welfare of child cannot be ignored. The minor child definitely want to be in touch with both parents and her mental balance get disturbed if she is not allowed to even meet the father, right of the parents are important but the right of child to stay and meet both her parents cannot be ignored.