It is not permitted to conduct marriages of two brothers at a time

It is not permitted to conduct marriages of two brothers at a time

It is not permitted to conduct marriages of two brothers at a time.The must be at least 6 months gap between each marriage But marriages of a brother and of a sister can be celebrated on the day with a gap of at least 20 minutes. Also, marriages of  two sisters can be conducted at a time (at the same muhurta)