Can change of the matter in the case be done orally in front of the judge?

My case is regarding a family case. My case was ready but not send to my husband side by the lawyer. Now I want to proceed it but I would like to say that as the dowry amount mentioned in the case by cheques was less than the proofs that I have. I mentioned there I have paid by cheques but actually these were by both cheques and DD. Can I proceed with that and when needed if I will show to the judge the proof then will it be accepted or not? Or else shall I proceed with other fresh typing matter with the exact details? It was regarding the maintanance. How can I add to it dowry recovery and also maintainance recovery that he never paid in the past. Please guide me in this respect. Thanks and regards!