after obtaining Anticipatory bail, you have to get your regular bail executed and enlarged accordingly. Subsequent to this, on summoning, you all may have to attend the police station for investigation, if not the police may recommend for cancellation of bail for not cooperating with the investigation. After the investigation is completed, the police will submit the charge sheet along with its report o the court where in you have to appear, contest and challenge the criminal case accordingly through your lawyer (if engaged).
As far as objecting to the grant of AB, her lawyer can very well do it on her instruction through a vakalatnama, there is nothing wrong in it. The defacto complainant is entitled to raise objections to the grant of Anticipatory Bail to vent out her grievances and apprehensions of the accused tampering the evidences if let out on bail. This is routine. There is nothing illegal about it. However, when the case is fixed for trial, only the public prosecutor will take care of the same and her lawyer with the permission of court may assist the PP during trial on behalf of the defacto complainant under the provisions of criminal procedure code.