If both of the members have a Mangal Dosh they can marry. Their married life goes smooth. The dosha is removed.
It can be performed in the presence and without the presence of the native. But the native photo is required. The picture should be recent. During the puja, the native’s father and the surname of his family is spoken in the Sankalpam by the Pandit.
It is depended on in which house your MangalDosha is. It is believed that Manglik marriage after 28is safe because the effect of the Dosha disappears. But those girls or boys born with Mars in the 8th house of Horoscope should wait till 36.