Sayyed Mohammad Al-Musawi,
Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to religious questions. In the past, he has also spent significant time in India guiding the community.
First Valid Nikah will establish the marriage bond, while the other Nikah will be just for show and will not add on the valid Nikah.
It is permissible to do the second Nikah for showing people.