You should immediately lodge a criminal complaint agaisnt the cruelties meted out to you by your husband and his parents and other relatives.
You can include dowry harassment also in your complaint.
The physical assaults and criminal intimidation may also be included in your complaint.
In the event of any ill treatment or attack on your modesty, in the complaint you can include the offences relating to out raging the modesty as well.
Apart from police complaint, you may file a complaint with the judicial magistrate court for the offences of domestic violence seeking protection, compensation and interim maintenance besides relief for the violent acts agaisnt you.
If he is filing the divorce case as a retaliation, you may challenge the same properly in the court, just do not be worried, law is common to all, he cannot prevail over you even after committing atrocities agaisnt you.