Crpc 125

You must approach the court with clean hands and disclose your entire salary. You have yourdself stated in your petition that she has ,mental issues and hence she cannot be expected to earn a living. Hence having to pay maintenance is inevitable, and to be very honest with you, being able to get out of thyat responsibility is next to impossible. However if for some reason the court feels that the salary you have shown is less than what you earn, then it will come down very heavily on you. Disclose that you are earning only 20k and have a good lawyer to defend the case and try and get minimum maintenance fixed for your wife.

Alternatively focus strongly on the divorce case and proceed with full steam in that case so that you can have a decree asap so as to consider remarrying.

The fact is you know or you was not known at the time of marriage she was bipolar disorder patient.... As a professional i must suggest this is void marriage and you dont have to pay even single penny and i have good citations....... but on humanity grounds say..... You also liked her thats y you married her... cant there any treatment she might get out from her illness and you bothe live together again...... It's only advice dude...Its onto you what you gonna do..???

1) You will have to pay maintenance so disclose 20k as your salary to ensure you pay minimum i.e 20/3 = 6k or so. Pls show all your expenses like medical bills, loans, expenses for self to further reduce or keep amount minimum

2) Biploar PD is a chronic problem and it will not get cured permanently, howeever medicines /counselling can keep problem in check. However the million dollar question is whether the wife accepts she has this problem as such cases keep denying and refuse/avoid to take medicines. 

3) what happened with you is cheating and there are many men who are victims of such fraud. Fight ur case on merits and ensure you do all that is necessary to pay her peanuts so that she will get frustrated and settle for one time alimony that you can afford. Dont waste ur time on such people. Live your life as you get to live only once, so make the best of it !