1. Well, first check whether deamnd of dowry is mentioned in the complaint or not and if yes whether any ampunt is specified.
2. if no then you can challenge this addition of charge.
3. Since it is addition of charge you need to take bail for DP cases.
4. The matrimonial disputes hardly reaches to a logical conclusion and gets settled amicably within a few years.
5. So in your case also I do not find exception .However to settle the case do not succumb to any exorbitant demand and if she has huge demand now then fight he case vigorously for few years to bring down her demand considerably.
6. File a suit for divorce.
Good luck.