Marriage Dispute

Hi... i got married in april 2017 and ever since my wife is not settle down in my family well. She always try to make issue in the family and after that goes to her maternal house and make false statements against us in front of her parents and do not want to come back. I, many a times convince her despite her mistakes, to come back and live with us. Because of her, i transfer myself from my home location to other state and stays there with her and my 8 months old son. She is reluctant to work all the times. Whenever i came back from office, she always said that our son did not let her to work and on the other hand when i checked her mobile, she talked to her mother almost 3 hours during the day. Now again she fought with me and with my family and went to her maternal house and did not come back since 7th Dec 2018. She does not care, How I am living with her and our son. I called her father to sent back but he is also don’t want to hear us because they believe her daughter is right all the time. Now I am really fed up with all this. My question is : If I give divorce to my wife, can I get the child custody? Because she is not capable enough to make his future bright. Being a house wife she did not even gave mother milk to my son during the initial 6 months. And what orders can court give against me if I file a case under desertion and cruelty? Because I don’t want to give anything to her.