Divorce Under Mental Condition Of Wife

I'm an Indian Army Soldier. I got married in April 2000. I've two daughters aged 12 and 9 years. I, my brother, mother, father(demised) and bhabhi are facing case under IPC 498A and 3/4 since Jun 2011. However, my in laws had took my wife on 20 April 2009 as we complaint them mental condition of my wife. She is suffering from Psyjophrenia and I came to know about it in April 2009. My in laws quarreled with us and took their daughter leaving my daughters (then aged 4 years& 1 year 4 months) with me. I had also filed Divorce case but my petition rejected in January 2013 by Ambala Court. I took the case to Chandigarh High Court but the same was rejected there too. Now I've approached my in laws to resolve the matter. They are asking Rs 10 Lakh from me to resolve. I'm not in cindition to pay that much of huge amount. Now my wife can't remain with me due to her mental condition she even can't fulfil her duties as mother too. It has become very difficult for me to render my duties in the Army without mental tension. My daughters too arising but I'm wasting my earnings to defend the fake cases against me. I'm too afraiding to go in Supreme Court due to big expenses as I'm already in debts. I'm paying Rs 2K to wife as Maintenance allowance as ordered by Ambala Court. On behalf of my wife another case of maintenance under 125 has been filed in Saharanpur Court. But the same is stayed. Please guide me legally what should I do so that I can live peacefully without tension