By dowry case if you mean wife has filed domestic violence act under section 12 than she has to proove all allegations....she has to give evidence before district protection officer and fill DIR or domestic incidence report...this will be sent to court where wife has filed case...now if magistrate is satisfied that domestic violence has occured he/she will issue notice to you... In most cases an application under section 23 is given by advocates for interim maintenance and magistrate has power to grant it even exparty so as to give relief to wife and kid...supreme court had said wife should be granted 25 percent of salary....there are many other factors while granting maintenance and magistrate has immense powers in domestic violence act..but .court procedure is long and take months to years and your advocate will keep delaying the proceedings before any maintenance is granted...in your case it seems wife dosent want to stay with you..I am not a lawyer but my dv case is running for years and in my personal opinion family matters reaching court is unfortunate...try one last time for some settlement...but if you have decided to contest case than it is better to read a bit about domestic violence act..
If your wife has filed under section 498 A
than this a much stricter law where provisions for arrest etc are there...read about it as well and consult a good lawyer..
Also note that wife had legal right to file these cases in city where she resides so you will have to contest it there only...