The term interracial relationship is one when two people of different origin have a relationship. This would be best explained as when a North American native leads to a relationship with someone of African origin. These relations have been in practice for the last few years. Still, most percentages of people do not prefer this as they think that this would not lead to a longer term relationship.
History is proof that many of the laws were even passed in the 17th century which did not allow interracial marriages. A law was passed in America that prevented black slaves from marrying whites. Many countries passed some more laws relevant to interracial marriages in around the 18th century. Couples faced a boycott from their society if they opted for interracial marriage. These laws were later abandoned, but still a vast percentage of people disregard interracial marriages.
Solution of such problems
The young generation is still not in vain to follow rules such like marrying in their own caste and society as their parents like them to do. Many of them who opt for interracial marriage used to face problems from parents of both the partners. The generation is more likely to go out for dating and such kinds of things and usually marry their choices whether or not they belong to their religion or race, but still their parents follow old age practices.
If the couple overcomes the above problem, then they are ready to face the next problem, which is the way in which the marriage is going to be held. Even if this is done, then there is problem of how to raise a child, worshiping religious places, etc. To solve these problems the best way is to gather at same place with bride and groom with their families. With certain discussion they need to come to some mutually understanding situation that both can rely on, this would help them carrying on for a longer term.