How to take permission to spend time with my son

Hi, right now I am staying with my parents from almost 6 months, before that also I am staying alone. I married on Apr-2014, my son came to my life on May-14-2016, from that day there is misunderstanding between with us, her mom made mistake just bcz of on that day I paid money to the hospital during admission and blood checkup of rupees 150. she talked unwanted things in front of my parents, my parents also talked what her daughter made mistakes, after that her mom told to my wife like me my dad mom were beaten her, there was big fight between me and my wife, I told we didn't did any thing, your mom talk like that so we have given reply to her, but my wife is not ready to accept. she is not giving value to me, she need independent life, she don't want any one, but she need her family.. my family is joint family of 20 members, we have some reputation in our village, now she is not coming to my home and not sending to my son to my home, still today no one has seen to my son, every one asking when u will bring him here like that... I need suggestion how to take permission to get my son and spend time with my family for festivals and my family functions...