Can a person can do nikah more than one time with same girl? A person did nikah to girls with witness but without knowlede of parents and relatives. So can he again do the nikah in front of all.
Wa’alaykum as Salam wa rahmatullahi wa barakatuhu,
Yes, if a person done a private Nikah, he may do the Nikah again publically.
The Prophet (sallallahu alayhi wa sallam) exhorted us to do Nikah infront of others. In a narration of Musnad Ahmad and Mustadrak al-Hakim it is mentioned:
عن عامر بن عبد الله بن الزبيرعن أبيه أن رسول الله صلى الله عليه وسلم قال: أعلنوا النكاح (رواه أحمد والحاكم وصححه ووافقه الذهبي)
“Announce a marriage.” (Musnad Hakim and Mustadrak al-Hakim).
The benefit of doing your Nikah again infront of all is that people will know that you married the girl, and they will not have any evil thoughts if they see you with her.