Reg claiming OBC reservation in Inter denominational marriage within Christianity

Hi Sir, I'm currently in a big dilemma due to an ongoing issue at my home. I'm about to get married to an Orthodox Christian guy, whom I have been in relationship with, post our parents agreement to it. But now we came to know that there are issues within the churches to get married to an Orthodox guy for a Catholic girl. He is willing to convert to Catholic now and his parents have agreed to it. My doubt are the following 1. Will I be able to avail my OBC reservation even after marriage, as he is a Maharashtra settled Keralite and I am a proper Keralite 2. If yes, from where do I need to produce my certificate, Maharashtra or Kerala, as my parents are in Kerala. 3. Will it be an issue if he joins the Roman catholic church, rather than Latin catholic Church, for my reservation? Will I automatically belong to RC post marriage? 4.Finally, will our children belong to Catholics as I had previously read that a person's caste cannot be changed post birth but only religion can. So even if he joins the catholic church, will he still be an Orthodox and our children belong to the same. It would be really kind of you if you could help me with these issues, as it is creating quite a stir due to these ongoing discussions and is stalling our marriage. Thanks a lot in advance.