It is said that if a Manglik person marries an Amanglik, one of them will inevitably pass away.
However, it is only stated in the scriptures that it is fortunate to wed a Manglik to a Manglik, as anything less will result in the pair having daily arguments and problems.
Making a Mangal Bhaat Puja in Ujjain is thought to be very lucky and good for removing these flaws.
Kalsarp Pooja in Ujjain