Need advise

it is his life and why he is fearing of bigamy 

thus his mother maybe influential person why is she threataninig his son for the same first let you meet a local lawyer for the better advice personally 

and about her wife for only no children divorce will not be granted and already four years of marriage and two years of separation on that you can file 

his life yes but mother says she does not to spoil her name and respect in the area etc.

wife and he not getting along totally incompatible infact the mother only guided her to go abroad and make her life saying she would manage to convince him to join her which he does not want. 

mother threatening him with false allegations what precaution can he take to move on without mother interfering. she is supporting the wife only cause of her name and respect that's it and knowing her will go to any extent.

To avoid any accusation and settle things in a good way please suggest a way out. 

Also on the divorce procedure as now wife has just recently gone last month. they were married for 4 years totally she has just gone last month abroad mother saying for 2 years contract. he not willing to wait and wants to go ahead with divorce as she did not even take his consent while going.

as per your saying she will not come for 2 years then what you want to do 

no option move out of that house and leave happily without any boundaries and nothing can be done legally because both parties should there for contested divorce or mutual consent divorce and even you can file for divorce were you get ex-parte divorce if she does not represent through gpa and when she comes back she can appeal based on limitation

Dear Querist

if he is unable to raise his voice against her mother and ready to live with fear and ready to destroy his life then nobody can help him.

it will be better for him to file divorce case against his wife and live alone as per his wish, left the mother and her home, if mother pressurized by any means then immediately file a complaint before police or court.