Adultery and child cstody

I am a hindu married on 19th january 2006 in special marriage act as my wife wadivorcee previously to a muslim boy.i am regional business manager in a pharmaceutical concern whereas she is ateacher of a primary school.she didnot gave much time to family life whereas devoted her time to mobile chattin late at night till 1- 3 o clock.when protested she called her parents and left house and on the same day lodged a false 498A/406/34 IPC dated 24th may 2015 which is still pending before court.on several occasions after this i requested to come back but she refused ,on 14th november 2017 she came back and continued her conjugal life.therafter some days happiness knocked and i came to know that she is pregnant.finally on 24th june she ave birth to a male child. at the time of delivery another muslim boy confornted me and told me that he is married to my legal wife at the time she was not staying with me in a mandir and he is the father of the male child and he went to hospital to claim the child.therafter being shocked i came and checked her medical reports where it was written her last menstrural cycle was on 14th october 2017 whereas she returned to my house on 14th november 2017 .therafter the boy threatened me and my mother on phone that to give my wife divorce legally and he is the father of the child. so will i get adultery,divorce