Apparently the said man as in query was never married as per customs of the community and provisions of applicable personal law.
But he has a biological daughter from the said Lady. The mother can come back for her child. She may even claim that they were married.
If a lady can accept marriage proposal and him and his child then he may be able to have successful married life.
Nevertheless he may approach a very able senior LOCAL counsel of unshakable repute and integrity specializing in Family matters and well versed with latest citations, LOCAL applicable rules/laws/ … and having successful track record…. and worth his/her salt…..and give inputs in person and show the documents/evidence for a considered opinion..and become properly informed.
At each location three are some counsels that specialize in such matters and they are well known.
Check for such counsels at LOCAL Family/Civil courts, HC, SC……