I am married since last 8 years and having child (daughter) age 5.5 years. As instigated by my wife

I am married since last 8 years and having child (daughter) age 5.5 years. As instigated by my wife mother, wife has filed false 498a and 406 against me. She is currently living in her parent home from last 5 month. I have filed section 9 to bring her back and also tried to settle the matter amicably but it seems my wife mother do not want to continue this relation and in counter my wife filed divorce case and interim maintenance under special marriage act 1954. (court did not order any interim maintenance yet as proceeding are in progress). I am regularly paying maintenance to my child since she left to her parent home without any court order but it seems my wife family is greedy. nQuestion: Wife is not allowing me to meet with my child. Do I need to file a separate case of child custody and visitation under 'guardian and wards act' OR I can put application on her divorce case for child visitation?