Dhaka, Feb. 17 -- Nowadays, many things are factored in while deciding on a marriage proposal. These are more important for arranged marriages since families are more involved in decision-making.

Compatibility is a key issue, and many argue that the prospective bride and groom should share similar values and interests for potential happiness. There are voices advocating for compatibility in terms of biological factors, i.e., blood group, as well.

There are four major blood groups: A, B, AB and O. Most of us belong to any one of these. Now let us get one thing straight: for marriage, it does not at all matter whether the bride and groom have the same or different blood group. It is not connected to the future outcome of their marriage an...