Please do not try to mis-interpret law. You are talking of something which needs to filed on very first day of your appearance as respondent, i.e. "objection".
It seems your wife maight not hired any advocate and hence filed suit for divorce in ordinary language. Her false allegation will work as cause of action and suit will proceed go on and the same will not be dismissed at this point of time.
Although you can try to raise your objection as you thinks so, but ultimately will lead to waste some dates only.
I will suggest you to hire good advocate and let him do the best action as per his desire.