Along with the application form for marriage you would be required to attach following documents:
1. If you both are OCI holders then copies of the same would be required while registering your marriage
2. Copies of both of your birth certificates
3. Copies of employment offer or recruitment enrollment certificate
4. An affidavit stating that both of you are inclined to get married, both are of adult age and belong to same religion/distinct religion and are not enforced to take this decision of marriage. There is free consent, willingness and no coercion to enter into this matrimonial bond from either of them to other.
5. Copies of your passports
6. Recent Passport size photos minimum 10 in number
7. Copies of residential proof of India and respective countries you both work.
8. If this is your second marriage then the copy of divorce decree of earlier marriage would be required
9. In application form for court marriage they would ask whether there is any criminal case pending against you in any court of law, If you have any criminal record then you would be required to attach copies of the same.
You are advised to keep a copy of the application form along with the enclosures attached therewith for your own records.