collateral security given to pvt ltd co. where wife is MD but divorced

What we can gather from your query is about the house. For that, it is required to know in whose name is the house registered if the house is in your mothers name you can file a suit against your wife and all the directors of the company who have terminated you.  Further, your wife may claim any amount as maintenance, but it is upto the court's discretion to decide whether you are capable to pay such an amount or not specially when your wife herself is an earning member. This is decided only after going through the income affidavits that you and your wife have to individually file in the court.