Wants to get married in Hyderabad with a bulgarian citizen

Hello, I am Mohammed Khaleel a (Muslim) from Hyderabad Telangana living in India and my girlfriend is a (Christian) from Europe living in Bulgaria. We want to get married in Special Marriage Act. In Hyderabad We are seeking guidance regarding how to get married in the Special Marriage Act but we are confused about the documents and procedure of this Special Marriage Act. We would like to ask you about the conditions and requirements to register a marriage: 1. When it’s mentioned in the Act. neither party has a spouse living: How to prove it? Do we both need to make a single status affidavit or anything else to obtain? 2. Neither party is incapable of giving a valid consent to it in consequence of unsoundness of mind: What does it mean? Will Marriage officer ask something? 3. As per Act. Neither party should have a mental disorder: Sorry it’s very confusing but what exactly they mean? Or will they ask some questions? 4. in chapter (II) point 7. Objection to marriage: What do they mean by any person may object? Will the marriage officer ask something with the couple or who will objecting our notice? 5. Should a foreigner come/need 3 witnesses from her home country or will my side witnesses be enough? 6. When I am serving a 30 days prior notice at the marriage registrar do I need to submit a foreigner's original passport or a copy would be enough? 7. As my girlfriend is a working woman and lives abroad, can I arrange all required documents and can I alone give a notice with the relevant documents to the marriage officer 30 days before the intended date of marriage and bring her on the day of marriage solemnisation? Or we need to stay together for 30 days? 8. After marriage is solemnised will we get a marriage certificate on the same day or after marriage registration we need to wait for some time to obtain a marriage certificate? 9. And will this marriage certificate help us or be acceptable for immigration purposes? And will this marriage certificate be recognised all over the world? 10. What documents required from both parties We are very sorry to ask you this many questions, it will be very appreciated if you answer our query, we have been struggling to get married since December 2021 and have suffered enough. Our intention is to get married and settle down! And I’m looking forward for a lawyer from Hyderabad to handle my case help me get married. Please, it's a request for you to guide us. Best regards Khaleel Mohammed