Problems from spouse

As the flat is her name she is the absolute owner of the flat and you have to hand it over to her.  

The suit for ejectment and possession of property by the property owner against the occupier is different subject to that of the divorce case.Both can run in parallel and simultaneously but neither case can affect each other.

If the court passes an order to vacate then  you have no reason to stay in that house which will be treated as contempt of court.

Of course (undoubtedly) she will file a suit for eviction (possession) from her flat and you have no right, claim, interest or title, accordingly you will have to vacate.

THIS law in our land is absolutely doesnot provide right to equality. It is a clear cut dicrimination for men in our country. I did witness in other case where the lady/wife occupied her husbands property and he is staying outside from his self acquired property.many counsels say that husband's eviction case will not work as he has to pay alimony to his wife in the divorce case and likely she can ask the husband's property in possession in her name during alimony stage. They further say evicting a third party tenant itself is very very difficult task, forget about wife??????????

There is no answer for your own way of understanding the law and giving incorrect opinion. 

Every case is different to each other. 

You concentrate on your case alone and look for legal remedies. if there's any applicable in your case.