Pension and forgery done by my husband in his CGHS card

My husband was retired from income tax and in his ppo there is name of another lady my name is not there I am his first wife without giving divorce he married to other lady. CGHS card is issued by income tax my name is there as a wife. I complain to income tax they said that in his service book your name is not mention. I filed a case in Tribunal court lucknow.