Documents needed for marriage

Good day,
              I just want to know  What are the documents needed To get married in the Philippines. My boyfriend is Indian, from Kerala, and he is catholic. He is 27 years old and I'm 29 years old. Both of us are single, never married and no kids. He visited Philippines this year. Both of as are working in dubai. We want to get married in Philippines by next year. Could you please tell me what are the documents both of us should prepare.

The vital ones are:

Certificates of being Single, never married, or Divorce certificates.
Original birth certificate or baptismal certificates